Fix a few more minor quoting problems.

Rename font-log-refontify

* lisp/font-lock.el (font-lock-debug-fontify): Rename to make it
clearer what the function is for.
* doc/lispref/modes.texi (Font Lock Basics): Ditto.

* lisp/startup.el (command-line): Fix last change in package--activated

Fix some quoting glitches in doc strings

Fix quoting glitch in formatting Gnus messages

* lisp/gnus/gnus-util.el (defmacro, gnus-message): Use
‘format-message’, not ‘format’, to be compatible with ‘message’.

Fix glitch in generating cxterm doc strings

* lisp/international/titdic-cnv.el (tit-process-header):
In generated doc strings, escape \, ", ', and ` properly.
Currently only ' appears but we might as well future-proof this.

Verilog-Mode collected updates.

* lisp/progmodes/verilog-mode.el (verilog-read-decls): Fix to skip
over base64-encoded protected data while reading AUTO declarations.
Reported by Berend Ozceri.
(verilog-auto-inst-port, verilog-auto-inst-vector): Support 'unsigned'
in `verilog-auto-inst-vector'. Reported by Jeff Riley.
(verilog-read-decls): Fix to ignore `line in AUTOINST, git
bug18. Reported by Berend Ozceri.
(verilog-library-extensions): Support .va /.vah/.sva/.svah file
extensions to load verilog-mode for Verilog-AMS.  Reported by Shareef
Jalloq.
(verilog-read-sub-decls-expr): Fix AUTOOUTPUT etc misparsing Verilog
casts, bug1526.  Reported by Udi Finkelstein.

Add several configuration files to auto-mode-alist

* lisp/files.el (auto-mode-alist): Use conf-mode for .asoundrc,
.mairixrc, .mbsyncr, .msmtprc, .nvidia-settings-rc, .offlineimaprc,
.reportbugrc, .rtorrent.rc, .screenrc, .mpdconf, .notmuch-config.  Use
conf-windows-mode for .redshift.conf.  (Bug#38065)

Document Lisp floats a bit better

* doc/lispref/numbers.texi (Float Basics):
* doc/misc/cl.texi (Implementation Parameters):
* lisp/emacs-lisp/cl-lib.el (cl-most-positive-float)
(cl-least-positive-float)
(cl-least-positive-normalized-float, cl-float-epsilon)
(cl-float-negative-epsilon):
Document IEEE floating point better.  Don’t suggest that Emacs
might use some floating-point format other than IEEE format, as
Emacs currently assumes IEEE in several places and there seems
little point in removing those assumptions.

* lisp/tab-bar.el: Better handling of closed-tabs in tab-bar-list.

* lisp/tab-bar.el (tab-bar-list-delete-from-list): Add closed tab to
tab-bar-closed-tabs.
(tab-bar-list-select): Don't add the closed intermediate tab to
tab-bar-closed-tabs.

* lisp/autorevert.el: Use 'minibuffer-message' to not obscure the prompt.

* lisp/autorevert.el (auto-revert-handler): Use 'minibuffer-message'
instead of 'message'.  Call it from the original window's buffer
that in case of the minibuffer should be current, so
minibuffer-message could add a message to it.  (Bug#34614)

* lisp/emacs-lisp/ert-x.el (ert--make-message-advice): Add nil to
the list of values to not use for format-message, because
minibuffer-message calls 'message' with nil argument, and tests fail.

Make dired-get-subdir-min obsolete

* lisp/dired.el (dired-get-subdir-min): Redefine as obsolete function
alias for 'cdr'.  (Bug#11571)
(dired-get-subdir, dired-get-subdir-max, dired-clear-alist)
(dired-next-subdir, dired-current-directory):
* lisp/dired-aux.el (dired-rename-subdir-2)
(dired-alist-sort, dired-insert-subdir-del)
(dired-insert-subdir-doupdate, dired-goto-subdir)
(dired-hide-subdir, dired-hide-all): Use 'cdr' instead of
the above obsolete function.
(dired-subdir-alist): Doc fix.

Co-authored-by: Drew Adams <drew.adams@oracle.com>

Move read-char-from-minibuffer from simple.el to subr.el and document it.

* doc/lispref/minibuf.texi (Multiple Queries):
Document read-char-from-minibuffer (bug#10477, bug#38076).

* lisp/subr.el (read-char-history)
(read-char-from-minibuffer-map)
(read-char-from-minibuffer-map-hash)
(read-char-from-minibuffer-insert-char)
(read-char-from-minibuffer-insert-other, empty-history)
(read-char-from-minibuffer): Move from simple.el to subr.el.

* lisp/cedet/semantic/wisent/comp.el (wisent-struct): Remove

(core, shifts, reductions, errs): Use cl-defstruct instead.
Adjust all users of the set-<struct>-<field> setters to use
`setf` instead.

Add extra bindings to fido-mode.

* lisp/icomplete.el (icomplete-fido-mode-map) : Add arrows and other
bindings to reproduce ido behaviour.

Disable a portion of one doc-test

* test/src/doc-tests.el (doc-test-substitute-command-keys):
Disable component that fails twice in the past 5 weeks
due to changes in the minibuffer map.

Don't overwrite y-or-n-p prompt by message from asynchronous man (bug#19064)

* lisp/man.el (Man-bgproc-sentinel): Postpone displaying the message
and deleting the buffer until exiting the code block with
with-current-buffer.  Use minibuffer-message to display message
to handle possibly active minibuffer.

Don't obscure the minibuffer by message (bug#17272)

* lisp/subr.el (do-after-load-evaluation): Use minibuffer-message
to not obscure a possibly active minibuffer.

* lisp/minibuffer.el (minibuffer-message):
Record message in the *Messages* buffer.

Use the minibuffer to read answer in userlock.el (bug#38076)

* lisp/userlock.el: Rename 'fn' to 'filename'.
(ask-user-about-supersession-threat): Use read-char-from-minibuffer
instead of read-char-choice.

* lisp/startup.el (package--activated): Fix redundant definition

* lisp/ffap.el (ffap-read-file-or-url): Don't use url-file-handler

Simplify accordingly (and don't call substitute-in-file-name redundantly).

hack-local-variables-confirm uses the minibuffer to read answer (bug#38076)

* lisp/files.el (hack-local-variables-confirm):
Use read-char-from-minibuffer instead of read-char-choice.
Remove special handling of original window scrolling
that is now supported in the minibuffer.  This fixes
https://lists.gnu.org/archive/html/emacs-devel/2019-10/msg01020.html
(files--ask-user-about-large-file): Use read-char-from-minibuffer
instead of read-char-choice.

Add CHARS arg to read-char-from-minibuffer compatible with read-char-choice.

* lisp/simple.el (read-char-history):
Rename from read-char-from-minibuffer-history.  (Bug#38076)
(read-char-from-minibuffer-insert-char):
Rename from read-char-from-minibuffer-self-insert.
(read-char-from-minibuffer-map-hash): New defconst.
(read-char-from-minibuffer-insert-other): New command.
(read-char-from-minibuffer): Add optional args CHARS and HISTORY.
(zap-to-char): Use 'read-char-history as HISTORY arg of
read-char-from-minibuffer.

* lisp/emacs-lisp/map-ynp.el (read-answer): Use sit-for instead of sleep-for.
Replace short answer history yes-or-no-p-history with read-char-history.

'y-or-n-p' now uses the minibuffer to read 'y' or 'n' answer (bug#38076)

* doc/lispref/minibuf.texi (Yes-or-No Queries): Update the fact
that y-or-n-p uses the minibuffer.

* lisp/subr.el (y-or-n-p-history-variable): New variable.
(y-or-n-p-map): New keymap.
(y-or-n-p-insert-y, y-or-n-p-insert-n, y-or-n-p-insert-other):
New commands.
(y-or-n-p): Rewrite to use read-from-minibuffer and make-composed-keymap
with y-or-n-p-map and query-replace-map.

Run scroll/recenter commands from minibuffer in original window (bug#38076)

* lisp/minibuffer.el (with-minibuffer-selected-window): New macro.
(minibuffer-recenter-top-bottom, minibuffer-scroll-up-command)
(minibuffer-scroll-down-command, minibuffer-scroll-other-window):
(minibuffer-scroll-other-window-down): New commands.
(minibuffer-local-map): Remap recenter/scroll symbols to their
minibuffer wrappers: recenter-top-bottom to minibuffer-recenter-top-bottom.

* src/window.c (Fother_window_for_scrolling): Use 'lambda' value for
MINIBUF arg of Fnext_window, so minibuffer-scroll-other-window and
minibuffer-scroll-other-window-down doesn't try to scroll the
minibuffer window.

Improve an error about the message signer

* lisp/gnus/mml-sec.el (mml-secure-epg-sign): Don't suggest setting
  `mml-secure-smime-sign-with-sender' if it's already non-nil.

Fix font-lock-keywords slightly

* lisp/font-lock.el (font-lock-keywords): Tweak doc string
slightly (bug#35005).

Fix case-insensitive completion of buffer names

* test/src/minibuf-tests.el (test-try-completion-ignore-case):
New test, suggested by Stefan Monnier <monnier@iro.umontreal.ca>.

* src/minibuf.c (Ftry_completion): Don't treat strings that
are identical but for the case as if they were identical for
the purposes of not counting the same string twice.  This
fixes case-insensitive completion when all the candidates are
identical but for the letter-case.  (Bug#11339)

Fix an error in selecting encoding when writing zip files

* lisp/international/mule-cmds.el (select-safe-coding-system):
Treat no-conversion-multibyte that came from find-auto-coding
the same as no-conversion for the purposes of encoding.  The
same logic that considers no-conversion always safe should do
the same with no-conversion-multibyte.  (Bug#38155)

* lisp/progmodes/cc-vars.el (c-mark-wrong-style-of-comment):
Fix version.

Revert "Nudge icomplete-mode a little closer to fido-mode"

Fixes bug#38131.

This is not the best way to have fido-mdoe emulate that particular bit
of ido-mode.

This reverts commit 5761a1a3939e23d8e8c725241dd9398a12f191b0.

Rename some commands to reflect they are fido-mode specific

* lisp/icomplete.el (icomplete-fido-kill)
(icomplete-fido-delete-char, icomplete-fido-ret)
(icomplete-fido-backward-updir): Rename from icomplete-magic-ido-*
versions.
(icomplete-fido-mode-map): Use new command names.

Protect flex's display-sort-function against 0-length candidates

* lisp/minibuffer.el (completion--flex-adjust-metadata): Assume a
candidate missing a score has a score of 0.

Widen around c-font-lock-fontify-region.  This fixes bug #38049.

* lisp/progmodes/cc-mode (c-font-lock-fontify-region): Widen in this function,
to ensure that the CC Mode font locking mechanism can examine characters
outside the given region.

CC Mode.  Allow fontification of "wrong" style comments with warning face.

This fixes bug #4192.

* etc/NEWS: Add a new entry.

* lisp/progmodes/cc-defs.el (c-font-lock-flush): New macro.

* lisp/progmodes/cc-cmds.el (c-toggle-comment-style): On toggling the comment
style, invoke c-font-lock-flush when c-mark-wrong-style-of-comment is non-nil,
to cause that marking to be done instead on the other style of comment.

* lisp/progmodes/cc-fonts.el (c-maybe-font-lock-wrong-style-comments): New
function.
(c-cpp-matchers): Call c-maybe-font-lock-wrong-style-comments when
appropriate.

* lisp/progmodes/cc-vars.el (c-mark-wrong-style-of-comment): New customizable
option.

* doc/misc/cc-mode.texi (top level, Indentation Commands, Guessing the Style,
Custom Macros): For some opening quote marks, correct '' to ``.
(Minor Modes): Add an xref to the new page "Wrong Comment Style" in a
footnote.
(Wrong Comment Style): New page.

Fix unresponsive Help menu in macOS

* src/nsterm.m (ns_check_menu_open): Don't postpone mouse drag and
non-user-generated mouse down events (Bug#31371).

Avoid compiler warnings in addpm.c and ddeclient.c

* nt/ddeclient.c (DdeCallback):
* nt/addpm.c (DdeCallback): Modify types of the last 2
arguments to avoid compiler warnings in 64-bit builds.
(Bug#38040)

Fix last change

* lisp/simple.el (goto-history-element)
(next-history-element): Fix quoting of "future history".

* doc/lispref/minibuf.texi (Minibuffer Commands)
(Text from Minibuffer): Add index entry and cross-reference
for "future history".  (Bug#38026)

Mention future history in history-related minibuffer commands

* lisp/simple.el (goto-history-element):
* doc/lispref/minibuf.texi (Minibuffer Commands): Explain
negative NABS.
* lisp/simple.el (next-history-element):
* doc/lispref/minibuf.texi (Minibuffer Commands): Mention
"future history."  (Bug#38026)

Fix some quoting glitches in doc strings

This also fixes a misplaced "only".

* lisp/ffap.el (ffap-read-file-or-url): Fix some URL cases

* lisp/ffap.el (ffap-read-file-or-url): Simplify further

* lisp/ffap.el (ffap-read-file-or-url): Use `read-file-name`

Since we use `url-handler-mode` to deal with URLs, `read-file-name`
works just as well, with the added benefit that it interacts correctly
with packages that rebind `read-file-name-function`, such as Helm.

(ffap-read-url-internal, ffap-read-file-or-url-internal): Remove, unused.

Fix MS-Windows version reference in FAQ

* doc/misc/efaq-w32.texi (Which versions of Windows): Clarify that we
support all recent versions of MS-Windows.  (Bug#38023)

Nudge icomplete-mode a little closer to fido-mode

* lisp/icomplete.el (icomplete-completions): Don't use ellipsis when
truncating determ in fido-mode.  Highlight the center part of
determ with icomplete-first-match.

Have pcm styles apply faces to face prop, not font-lock-face

This is the way the basic completion styles work.  This fixes
candidate highlighting in icomplete.

* lisp/minibuffer.el (completion-pcm--hilit-commonality): Apply
faces to 'face property, not font-lock-face.

Minor copyedits in ELisp manual

* doc/lispref/lists.texi (Sets And Lists): Minor rewording of
the "Common Lisp note".  (Bug#37811)

Ensure building and running on non-IPv6 capable hosts works

* src/process.c (Fmake_network_process) [AF_INET6]: Only build ::1
localhost when IPv6 is supported.
(Fnetwork_lookup_address_info) [AF_INET6]: Move check for Qipv6 inside
ifdef, since its definition depends on AF_INET6.  Don't return IPv6
addresses when they're not supported.

* test/src/process-tests.el (lookup-family-specification,
lookup-google): Only do IPv6 lookup if IPv6 is supported.

Handle case where a face's :extend attribute is unspecified (Bug#37774)

* src/xfaces.c (merge_face_vectors, merge_named_face): Handle case
where the :extend attribute's value is 'unspecified' (Bug#37774).

* lisp/emacs-lisp/easymenu.el: Don't quote lambdas

(easy-menu-do-define, easy-menu-make-symbol): Replace `(lambda ..)
with a closure.

Handle different system names of w32 in Tramp (Bug#38079)

* lisp/net/tramp.el (tramp-restricted-shell-hosts-alist):
Initialize with `system-name' in small and capital chars.

Describe IPv6 format in docstring for 'make-network-process'

* src/process.c (Fmake_network_process): Add description of IPv6
address format.

Revert "Don't flash previous buffer when connecting with emacsclient"

This reverts commit 49fc040077b33bd1e78ee425575e76329b772a41.
It turns out that the fix for a minor aesthetical annoyance
caused much more serious bugs: bug#31038, bug#35726, Bug#37097,

; * etc/NEWS: Fix wording of last change.

python.el: Pdbtracking improvements

Allow not to kill buffers when pdbtracking session is finished.
Pdbtracking session considered finished judging from the user input.

* lisp/progmodes/python.el (python-pdbtrack-kill-buffers): New
customizable variable.
(python-pdbtrack-set-tracked-buffer): Use it.
(python-pdbtrack-unset-tracked-buffer)
(python-pdbtrack-tracking-finish): New functions.
(python-pdbtrack-continue-command, python-pdbtrack-exit-command):
New customizable variables.
(python-pdbtrack-process-sentinel): New function.  Finish
pdbtracking session when process is killed.
(python-pdbtrack-prev-command-continue): New variable.
(python-pdbtrack-comint-input-filter-function): New function.
Finish pdbtracking session based on commands sent to pdb.
(python-pdbtrack-comint-output-filter-function): Unset/set
tracking buffer if looking at pdb prompt; finish pdbtracking
session if filename of current stack frame starts with
"<" e.g. "<stdin>".
(python-pdbtrack-comint-output-filter-function): Don't override
overlay-arrow-string.
(python-pdbtrack-setup-tracking): New function.
(inferior-python-mode): Use it.
(python-pdbtrack-stacktrace-info-regexp): Default value is changed.
Must also match lines with filename like "<stdin>" and "<string>".
* etc/NEWS: Mention python-pdbtrack-kill-buffers

; * etc/NEWS: Minor copyedits in the Fido mode entry.

Make ange-ftp fit for tramp-tests

* lisp/net/ange-ftp.el (ange-ftp-repaint-minibuffer): Use empty message.
(ange-ftp-quote-string): Unquote the string.
(ange-ftp-substitute-in-file-name, ange-ftp-access-file)
(ange-ftp-copy-directory, ange-ftp-make-symbolic-link)
(ange-ftp-add-name-to-file): New defuns.  Set 'ange-ftp property.
(ange-ftp-real-substitute-in-file-name)
(ange-ftp-real-copy-directory): New defuns.
(ange-ftp-file-name-as-directory): Care about `non-essential'.
(ange-ftp-file-attributes): Handle ID-STRING.
(ange-ftp-copy-file-internal, ange-ftp-rename-file)
(ange-ftp-make-directory): Improve error handling.
(ange-ftp-insert-directory): Initialize SWITCHES if they are nil.

* test/lisp/net/tramp-tests.el (ange-ftp-make-backup-files): Declare.
(tramp-test39-make-nearby-temp-file, tramp--test-ange-ftp-p): New defun.
(tramp-test05-expand-file-name-relative)
(tramp-test06-directory-file-name, tramp-test10-write-region)
(tramp-test11-copy-file, tramp-test12-rename-file)
(tramp-test17-insert-directory)
(tramp-test26-file-name-completion)
(tramp-test37-make-auto-save-file-name)
(tramp-test38-find-backup-file-name)
(tramp--test-special-characters): Use it.

Clean up major mode check in package-menu-mode

* lisp/emacs-lisp/package.el (package--ensure-package-menu-mode):
Extract function to warn about incorrect major mode...
(package-menu-toggle-hiding, package-menu-refresh)
(package-menu-execute): ...from here.
(package-menu--mark-upgrades-1): And here, but move call...
(package-menu-mark-upgrades): ...here instead.
(package-menu-hide-package, package-menu-mark-delete)
(package-menu-mark-install, package-menu-mark-unmark)
(package-menu-quick-help, package-menu-get-status)
(package-menu-filter-by-keyword, package-menu-filter-by-name)
(package-menu-clear-filter): Add call to new function.  (Bug#37891)

Test that comint-password-prompt-regexp matches "git push"

* test/lisp/comint-tests.el (comint-testsuite-password-strings): Test
that 'comint-password-prompt-regexp' matches 'git push'
output.  (Bug#20910)

* lisp/dired-aux.el (dired-vc-rename-file): New defcustom.

(dired-rename-file): Call vc-rename-file when dired-vc-rename-file is non-nil.

* lisp/vc/vc.el (vc-rename-file): Allow renaming added files.
Call vc-file-clearprops on new file too for the case when
old and new files were renamed to each other back and forth.

https://lists.gnu.org/archive/html/emacs-devel/2019-11/msg00069.html

* lisp/tab-bar.el (tab-bar-history-old): Rename from tab-bar-history-current.

(tab-bar-history-old-minibuffer-depth):
Rename from tab-bar-history--minibuffer-depth.

* lisp/tab-line.el: More configurability for tab buffer groups.

* lisp/tab-line.el (tab-line-tabs-buffer-group-function)
(tab-line-tabs-buffer-group-sort-function)
(tab-line-tabs-buffer-groups-sort-function): New defvars.
(tab-line-tabs-buffer-group-name): Rename from
tab-line-tabs-buffer-groups--name and use tab-line-tabs-buffer-group-function.
(tab-line-tabs-buffer-groups): Use tab-line-tabs-buffer-groups-sort-function
and tab-line-tabs-buffer-group-sort-function.
(tab-line-new-tab): Let bind tab-line-tabs-buffer-groups to
mouse-buffer-menu-mode-groups.

Simplify fixnum division slightly

* src/data.c (arith_driver): Streamline fixnum division a bit
more, and add a comment about why overflow is impossible.
This responds to a private comment by Stefan Monnier.

Add a full set of CC Mode language variables to js.el.

This will allow js.el to work after maintenance changes in CC Mode, e.g. the
fix to bug #11165.

* lisp/progmodes/js.el (top level): Create a CC Mode derived language called
js-mode and based on Java Mode.
(js-mode): call c-init-language-vars for js-mode.  Remove the direct settings
of several CC Mode language variables which are now defined through the
derived language mechanism.  Call c-set-style and set up the needed style
variables c-block-comment-prefix and c-comment-prefix-regexp.

Minor fix in the Emacs manual

* doc/emacs/msdos.texi (ls in Lisp): Fix the description of
'ls-lisp-verbosity'.  (Bug#38077)

time-stamp: add support for time zone numeric offset

* time-stamp.el: Implement %:z as expanding to the numeric time zone
offset, to address the feature request of bug#32931.  Do not document it
yet, to discourage compatibility problems in mixed Emacs 26 and Emacs 27
environments.  Documentation will be added in a subsequent release at
least two years later.  (We cannot yet use %z for numeric time zone
because in Emacs 26 it was documented to do something else.)

* time-stamp-tests.el (time-stamp-test-format-time-zone): expand this
test and break it into two tests, time-stamp-test-format-time-zone-name
and time-stamp-test-format-time-zone-offset.

More error checks in Tramp's make-directory

* lisp/net/tramp-adb.el (tramp-adb-handle-make-directory):
* lisp/net/tramp-gvfs.el (tramp-gvfs-handle-make-directory):
* lisp/net/tramp-sh.el (tramp-sh-handle-make-directory):
* lisp/net/tramp-smb.el (tramp-smb-handle-make-directory):
* lisp/net/tramp-sudoedit.el (tramp-sudoedit-handle-make-directory):
Signal `file-already-exists' if DIR exists.

* test/lisp/net/tramp-tests.el (tramp-test04-substitute-in-file-name):
Fix thinko.
(tramp-test13-make-directory, tramp-test14-delete-directory)
(tramp-test15-copy-directory): Extend tests.

Fix problem with my last commit in package.el

* lisp/emacs-lisp/package.el (package-menu--refresh-archives): Rename
from duplicated name package-menu--refresh.  (Bug#38084)
(package-menu-mode, list-packages): Use new name.

Update from Gnulib

This incorporates:
2019-10-24 timespec-add, timespec-sub: simplify
* lib/timespec-add.c, lib/timespec-sub.c:
Copy from Gnulib.

Remove unneeded overflow check in integer division

* src/data.c (arith_driver): Remove unnecessary runtime test,
since integer overflow is impossible on division of fixnums,
given that the worst case is MOST_NEGATIVE_FIXNUM / -1 which is
representable as an EMACS_INT (albeit not as a fixnum).

Avoid changing value of defcustom package-enable-at-startup

* lisp/emacs-lisp/package.el (package--activated): New variable to
avoid changing value of defcustom 'package-enable-at-startup'.
(package-initialize): Don't set 'package-enable-at-startup'.
(package-initialize, package-activate-all): Set 'package--activated'
instead of 'package-enable-at-startup'.
(package--initialized): Add doc string.

* lisp/startup.el (command-line): Check if 'package--activated' is
non-nil before activating packages.

* doc/lispref/package.texi (Packaging Basics): Update docs.

Make 'g' refresh package data in package menu

* lisp/emacs-lisp/package.el (package-menu--refresh): Rename from
'package-menu-refresh', make internal and non-interactive.
(package-menu-mode-map, package-menu-mode-menu, package-menu-mode)
(list-packages): Use the above.  (Bug#35504)
(package-menu-refresh): Redefine as obsolete fuction alias for
'revert-buffer'.
* doc/emacs/package.texi (Package Menu): Document it.
* etc/NEWS: Announce it.

Rename *-multiframe-window to *-window-any-frame

Suggested by Drew Adams.

* lisp/frame.el
(next-multiframe-window): Define as obsolete alias for...
(next-window-any-frame): ...new function name.
(previous-multiframe-window): Define as obsolete alias for...
(previous-window-any-frame): ...new function name.  (Bug#12436)

* lisp/term/ns-win.el (global-map): Use new command name.
* doc/emacs/windows.texi (Other Window): Document it.
* etc/NEWS: Announce it.

Follow JSONRPC spec by not sending :result field on errors

Also don't send :error field on non-errors.

* lisp/jsonrpc.el (jsonrpc--reply): Don't send :result and :error
if none supplied.
(Version): Bump to 1.0.8

Add prefix arg to more isearch commands (bug#14563)

* lisp/isearch.el (isearch--yank-char-or-syntax)
(isearch-yank-word-or-char, isearch-yank-symbol-or-char)
(isearch-yank-until-char): Add optional prefix arg.

* lisp/tab-line.el: New option for tabs where buffers are grouped by mode.

* lisp/tab-line.el (tab-line-tabs-function): Add option
tab-line-tabs-buffer-groups.
(tab-line-tabs-buffer-groups): New defvar defaulted to
mouse-buffer-menu-mode-groups.
(tab-line-tabs-buffer-groups--name, tab-line-tabs-buffer-groups):
New functions.
(tab-line-format): Support tabs in the format '(tab (name . "name") ...)'.
(tab-line-select-tab): Move part of code to tab-line-select-tab-buffer.
(tab-line-select-tab-buffer): New function.
(tab-line-tab-current): Rename from tab-line-tab-selected.

Document fido-mode

* doc/emacs/buffers.texi (Icomplete): Document Fido Mode.

* etc/NEWS: Mention Fido Mode.

* lisp/icomplete.el (icomplete-mode): Ensure fido-mode is off.
(fido-mode): Ensure icomplete-mode is off.
(icomplete-magic-ido-ret): Don't force completions if no
completions.

New fido-mode, emulates ido-mode with icomplete-mode

* lisp/icomplete.el (icomplete-fido-mode-map): New variable.
(icomplete--fido-mode-setup): New function.
(fido-mode): New global minor mode.

Pacify byte-compiler in calculator.el

* lisp/calculator.el (calculator-expt): Open-code cl-evenp to
pacify warning “the function ‘cl-evenp’ might not be defined”.
Problem reported by Juanma Barranquero in:
https://lists.gnu.org/r/emacs-devel/2019-11/msg00118.html

* admin/unidata/uvs.el: Use lexical-binding

* lisp/doc-view.el (doc-view--revert-buffer): Fix last change

Declare unused macro package--push obsolete

* lisp/emacs-lisp/package.el (package--push): Declare obsolete.

Improve Tramp's copy-directory

* lisp/net/tramp-adb.el (tramp-adb-file-name-handler-alist):
* lisp/net/tramp-gvfs.el (tramp-gvfs-file-name-handler-alist):
* lisp/net/tramp-rclone.el (tramp-rclone-file-name-handler-alist):
* lisp/net/tramp-sudoedit.el (tramp-sudoedit-file-name-handler-alist):
Add `copy-directory'.

* lisp/net/tramp.el (tramp-handle-copy-directory): New defun.

Always check for client-certificates

* lisp/net/network-stream.el
(network-stream-use-client-certificates): New user option.
(open-network-stream): If 'network-stream-use-client-certificates'
is t, and the user hasn't specified :client-certificate, do
certificate lookups via 'auth-source'.
(network-stream-certificate): Only return key and certificate
files that exist.

* doc/lispref/processes.texi (Network): Document new
client-certificate behavior.

* etc/NEWS: Document 'network-stream-use-client-certificates'.

Simplify calculator-expt

* lisp/calculator.el (calculator-expt): Simplify, now that
expt does the right thing if the first arg is -1, 0, or 1.

Overflow errors are range errors

* etc/NEWS: Mention this.
* doc/lispref/errors.texi (Standard Errors):
Document overflow-error, which was formerly undocumented.
It is a range error, not a domain error.
* src/data.c (syms_of_data): overflow-error and (undocumented)
underflow-error are subtypes range-error, not domain-error.
This fixes bugs in timezone-time-from-absolute and in
erc-ctcp-reply-PING.

Don’t signal overflow for (expt 1 bignum)

Similarly for (expt 0 bignum) and (expt -1 bignum).
The result is always a -1, 0 or 1, so do not signal overflow.
* src/data.c (expt_integer): Do not signal an overflow if
-1 <= X <= 1.  Be clearer about when overflow is signaled.
* test/src/floatfns-tests.el (bignum-expt): Test this.

Fixes bug where restoring game saved in an endgame question room would show 'nil' as the question.

Improve Tramp error handling

* lisp/net/tramp.el (tramp-set-syntax): Add missing argument.
(tramp-signal-hook-function): Make it more robust.
(tramp-handle-directory-files):
* lisp/net/tramp-adb.el
(tramp-adb-handle-directory-files-and-attributes)
(tramp-adb-handle-copy-file, tramp-adb-handle-rename-file):
* lisp/net/tramp-gvfs.el (tramp-gvfs-do-copy-or-rename-file):
* lisp/net/tramp-rclone.el (tramp-rclone-do-copy-or-rename-file)
(tramp-rclone-handle-directory-files):
* lisp/net/tramp-sh.el (tramp-sh-handle-directory-files-and-attributes)
(tramp-sh-handle-copy-directory, tramp-do-copy-or-rename-file):
* lisp/net/tramp-smb.el (tramp-smb-handle-copy-directory)
(tramp-smb-handle-copy-file, tramp-smb-handle-directory-files)
(tramp-smb-handle-rename-file):
* lisp/net/tramp-sudoedit.el (tramp-sudoedit-do-copy-or-rename-file):
Improve error handling.

* test/lisp/net/tramp-tests.el (tramp-test11-copy-file)
(tramp-test12-rename-file, tramp-test14-delete-directory)
(tramp-test15-copy-directory, tramp-test16-directory-files)
(tramp-test19-directory-files-and-attributes): Extend tests.

Fix last change in dired.c

* src/dired.c (file_name_completion): Fix arguments to
Fcompare_strings.  (Bug#38056)

Fix English grammar in some doc strings and comments

(files.el subr.el): Fix some grammar errors in doc strings and comments.
(frame.c fringe.c image.c xfns.c xterm.c): Fix some English grammar
errors in doc strings.

Improve time documentation a bit more

* doc/lispref/os.texi (Time of Day, Time Conversion)
(Time Parsing, Time Calculations): Improve doc.

* lisp/help-fns.el (describe-variable): Add quotes to symbol value of origval.

* lisp/tab-bar.el: Better handling of tab-bar-history.

* lisp/tab-bar.el (tab-bar-history-limit): Increase to 10 since wc
is not saved to the desktop file anymore, so doesn't affect its size.
(tab-bar-history--pre-change, tab-bar--history-change):
Store wc before possibly entering the minibuffer.

* lisp/tab-bar.el: Filter out non-persistent tab parameters from frameset.

* lisp/tab-bar.el (frameset-filter-tabs): New function
added to 'frameset-filter-alist' for frame parameter 'tabs'.
(tab-bar--tab): Remove ws-bl/ws-bbl that are not needed because
frameset doesn't save frame buffer-list to desktop anyway.
(tab-bar-select-tab): Remove ws-bl/ws-bbl related code.

* lisp/emacs-lisp/seq.el (seq-reduce): Add autoload cookie.

Handle truncate-lines in customize-group

* lisp/cus-edit.el (custom-group--draw-horizontal-line): New
function to draw horizontal lines which handles a non-nil value of
'truncate-lines'.  (Bug#25308)
(custom-group-value-create): Use it.

Co-authored-by: Jonas Bernoulli <jonas@bernoul.li>

Fix doc of font-lock-syntactic-face-function

* doc/lispref/modes.texi (Syntactic Font Lock): Don't refer to
no-longer-existing OTHER-VARS (bug#17730) and include an example.

Fix file-tests.el on MS-Windows

* test/lisp/files-tests.el
(files-tests-file-name-non-special-start-file-process): On
MS-Windows, wait till the process dies before returning from
the files-tests--with-temp-non-special macro, to ensure the
temporary directory is successfully deleted.

Fix case-insensitive completion of non-ASCII file names

* src/dired.c (scmp): Comment on (non)applicability to
comparisons of  non-ASCII strings case-insensitively.
(file_name_completion): Decode early the file names read from
the directory, and use the decoded names for comparison when
letter-case should be ignored.  (Bug#11339)

; * src/font.c (Ffont_info): Minor fix of doc string.