xref-matches-in-files: Decrease per match and per group overhead

* lisp/progmodes/xref.el (xref-search-program-alist):
Add '--null' argument for slightly faster parsing and probably
better behavior with weirder file names.
(xref--alistify): Don't accept TEST argument, use 'assoc' instead
of 'cl-assoc', use a tash table during sorting (bug#50733).

Fix string-distance for two empty strings

* fns.c (Fstring_distance): Avoid using uninitialized memory.
* test/src/fns-tests.el (test-string-distance): Add test cases.

* lisp/mouse.el (context-menu-region): Use save-excursion for syntax-ppss.

New thing-at-point target 'list-or-string' used in context-menu-region

* lisp/mouse.el (context-menu-region): Rearrange the order to
All>Defun>List>Line>Symbol.  Show title either "List" or "String"
depending on syntax-ppss, then use thing 'list-or-string' (bug#9054).

* lisp/thingatpt.el (thing-at-point-bounds-of-list-at-point): Add optional
args 'escape-strings' and 'no-syntax-crossing' like in 'up-list'.
(list-or-string): New target 'list-or-string'.
(thing-at-point-bounds-of-list-or-string-at-point): New function.

* lisp/outline.el (outline-minor-mode-cycle-filter): New defcustom (bug#50679)

(outline-minor-mode-cycle--bind): New helper function.
(outline-minor-mode-cycle-map): Rename from outline-mode-cycle-map.
(outline-mode-map): Revert part of 6458e16f33 to disassociate
keymaps outline-mode-map and outline-minor-mode-cycle-map.
(outline-font-lock-keywords, outline-minor-mode-highlight-buffer):
Use outline-minor-mode-cycle-map instead of outline-mode-cycle-map.

* lisp/help.el (describe-bindings): Rename outline-mode-cycle-map
to outline-minor-mode-cycle-map.

; * lisp/progmodes/verilog-mode.el: Untabify doc-strings.

* test/infra/Dockerfile.emba: Do not run 'make -j4 bootstrap'.

; * etc/NEWS: Fix typos and punctuation in recently added entries.

Fix Tramp's make-process on macOS

* lisp/net/tramp-sh.el (tramp-get-remote-mknod-or-mkfifo): New defun.
(tramp-sh-handle-make-process): Use it.  (Bug#50748)

* lisp/net/tramp-cmds.el (tramp-cleanup-connection): Remove trace buffer.

Add aggregate project discovery and maintenance functions

* project.el (project-remember-project): Add optional no-write argument
(project-remember-projects-under): Add command
(project-forget-zombie-projects): Add command
(project-forget-projects-under): Add command
* etc/NEWS: Document new commands

Fix vc-annotate-show-log-revision-at-line

* lisp/vc/vc-annotate.el (vc-annotate-show-log-revision-at-line):
Stop from being affected by 'vc-git-print-log-follow'.

* lisp/vc/vc-git.el (vc-git-print-log-follow):
Mention caveats in a comment.

verilog-mode.el: Backout part of recent change showing wrong comment

Clarify which-function tooltip text

* lisp/progmodes/which-func.el (which-func-format): Clarify tooltip
text.

Improve NEWS entry for 'ffap-file-name-with-spaces'

* etc/NEWS: Mention default value of 'ffap-file-name-with-spaces'.

;* lisp/whitespace.el (whitespace-display-window): Add doc-string.

; * lisp/subr.el (match-string): Clarify doc string.

Clarify align-regexp doc string

* lisp/align.el (align-regexp): Clarify what REGEXP has to
contain, and which bits are added automatically interactively
(bug#33541).

Add section to refcard explaining our keybinding notation

* etc/refcards/refcard.tex (Starting Emacs): Delete section.
(Key Binding Notation): New section.  (Bug#41403)

Use lexical-binding in emoji-zwj.el

* admin/unidata/emoji-zwj.awk: Add lexical-binding cookie to
generated fie emoji-zwj.el.

Expand the `match-string' doc string

* lisp/subr.el (match-string): Mention some caveats (bug#34214).

Improve error messaging from byte-compiling dotted lists

* lisp/emacs-lisp/cconv.el (cconv-analyze-form): Improve error
messaging when byte-compiling dotted lists (bug#35186).

Test case -- byte-compile the following file:

;;;  -*- lexical-binding: t -*-

(defun foo ()
  (+ 1 2)
  (a . b))

; * etc/NEWS: Fix typo in last commit.

Move 'kdb-macro-redisplay' key binding

* doc/emacs/kmacro.texi (Basic Keyboard Macro): Adjust.

* lisp/kmacro.el (kmacro-keymap): Move 'kdb-macro-redisplay' to
`C-x C-k d' since upper-case letters are reserved for users (bug#50727).

; More minor stylistic fixes found by checkdoc

Put './' in the project directory completions

* lisp/progmodes/project.el (project--read-file-cpd-relative):
Put './' in the completions set when cpd was in the original
(bug#50732).

; Fix recently added documentation

* lisp/thingatpt.el (bounds-of-thing-at-mouse, thing-at-mouse):
Improve and clarify the doc strings.

Many improvements for Context Menus (bug#9054)

* lisp/menu-bar.el (menu-bar-showhide-menu): Add "Context Menus".

* lisp/mouse.el (context-menu-undo): Add "in Region" to the titles
when the region is active.
(context-menu-region): Use 'mouse-yank-from-menu' in menu items
created from 'yank-menu' for submenu "Paste from Kill Menu".
(context-menu-region): Add submenu "Select" with things to mark.
(mark-thing-at-mouse, mouse-yank-from-menu): New functions.

* lisp/thingatpt.el (bounds-of-thing-at-mouse): New function.

* lisp/progmodes/elisp-mode.el (elisp-context-menu):
* lisp/progmodes/prog-mode.el (prog-context-menu):
Use full symbol/identifier names in :help strings.

Suggested by Martin Rudalics <rudalics@gmx.at>

Fix build with native compilation but without zlib

* src/comp.c (comp_hash_source_file): Condition code that requires
zlib with HAVE_ZLIB.

* etc/NEWS: Explain that '--without-compress-install' is necessary
when configuring with native compilation but without zlib.

verilog-mode.el: Enable lexical binding, and merge from upstream.

* lisp/progmodes/verilog-mode.el: Enable lexical binding.  Templates that
  used the never-documented `inst' or `submod' variables may need to change
  to use vl-... variables.
  (verilog-at-constraint-p): Fix indentation on double curly brackets
  (#1719) (#1744).  Reported by Nikolay Puzanov.

Don't rely on lexical-binding being nil in tests

* test/lisp/button-tests.el (button--help-echo-form):
* test/lisp/files-tests.el (files-tests-permanent-local-variables):
Remove assumption that `with-temp-buffer` creates a buffer
where `lexical-binding` is nil.

; * .gitignore: Add native-lisp/.

Doc string fixes in comp.e

* src/comp.c (Fcomp_el_to_eln_filename)
(Fcomp_el_to_eln_rel_filename): Doc fix.

Update comments warning about GC-resistant C programming

* src/eval.c: Remove an outdated comment about protection from GC.
* src/buffer.h:
* src/lisp.h: Add warnings about using 'char *' pointers to text
of Lisp strings and buffer text in code that could GC.  Reported by
Po Lu <luangruo@yahoo.com>

Native compilation on macOS: libgccjit not found

* etc/PROBLEMS: Describe the problem with libgccjit setup on
macOS.  (Bug#50411)

; * doc/misc/mh-e.texi (Scan Line Formats): Fix typo, an extra "the".

Speed up `replace-match' slightly

* src/search.c (Freplace_match): Speed up non-literal (but
actually literal) common case.

This makes

(benchmark-run 1000000
  (replace-regexp-in-string
  "a+" "foo"
  "ogihdipofdhookfdohkfdpokhpokhfdpokfdhpokfdhkdfkhgoadfphokfkhpofdkhkdpokf"))

about 10% faster.

Migrate MH-E functional tests from SourceForge

* test/lisp/mh-e/mh-limit-tests.el:
* test/lisp/mh-e/mh-utils-tests.el:
* test/lisp/mh-e/mh-xface-tests.el:
Import the functional tests from src/mh-unit.el.

mh-unit.el is from the old SourceForge mh-e repository, last changed
in 2017.  To this are applied unmerged patches Mike Kupfer wrote in
2018 ("Refactor mh-unit into functional and release tests" and
"Fix the functional tests").

All tests have been converted to run under Emacs's ERT framework.

Some tests for mh-utils use MH programs to examine mail folders.
These tests require an MH variant to be installed on the system; for
these, added both a mock harness that pretends the needed files and MH
programs do exist, and a wrapper that creates the necessary mail files.

New function 'mh-test-utils-setup-with-variant' bears some resemblance
to 'mh-test-folders-set-up' from the original tests.  New function
'mh-test-utils-setup-with-mocks' is new functionality for these tests.

Change how thread-first/thread-last indent the first argument

* lisp/doc-view.el (doc-view--current-cache-dir): Reindent.

* lisp/emacs-lisp/subr-x.el (thread-first):
(thread-last): Change indentation to match examples.
(internal--build-binding): Reindent.

* test/lisp/emacs-lisp/subr-x-tests.el
(subr-x-test-thread-first-function-names-are-threaded):
(subr-x-test-thread-first-examples):
(subr-x-test-thread-last-function-names-are-threaded):
(subr-x-test-thread-last-examples): Reindent.

Make global-auto-revert-non-file-buffers work better

* lisp/autorevert.el (global-auto-revert-mode): Always switch on
the non-file tracking.
(auto-revert--global-possibly-adopt-current-buffer): New function
to respect dynamically changing `global-auto-revert-non-file-buffers'.

(etc-authors-mode--hide-local-variables): Obfuscate more efficiently

; * etc/NEWS: Improve wording of an item.

* lisp/emacs-lisp/hierarchy.el: Improve wording of package description.

Fix warning in etc-authors-mode.el

* lisp/textmodes/etc-authors-mode.el
(etc-authors-mode--hide-local-variables): Avoid warning.

Don't quote nil and t in doc strings and comments

* test/src/minibuf-tests.el (test-try-completion-ignore-case):
* test/lisp/url/url-auth-tests.el
(url-auth-test-digest-auth-retrieve-cache):
* test/lisp/subr-tests.el (subr-tests-add-hook-depth):
* test/lisp/so-long-tests/so-long-tests.el
(so-long-tests-invisible-buffer-function):
* test/lisp/emacs-lisp/tabulated-list-test.el (tabulated-list-sort):
* src/xfaces.c:
* src/process.c (Finterrupt_process):
(syms_of_process):
* src/minibuf.c (Fread_from_minibuffer):
(Fcompleting_read):
(syms_of_minibuf):
* src/dispnew.c (syms_of_display):
* src/data.c:
* lisp/so-long.el (so-long--hack-local-variables):
* lisp/progmodes/elisp-mode.el (elisp--xref-find-definitions):
(elisp--xref-find-definitions):
* lisp/org/ox-html.el (org-html-htmlize-output-type):
* lisp/org/org-agenda.el (org-agenda-do-in-region):
* lisp/net/tramp.el:
* lisp/minibuffer.el (set-minibuffer-message):
* lisp/isearch.el (isearch-wrap-pause):
(isearch-repeat-on-direction-change):
* lisp/emacs-lisp/timer.el (timer):
* lisp/emacs-lisp/package.el (package-read-archive-contents):
* lisp/emacs-lisp/faceup.el (faceup-next-property-change):
* lisp/emacs-lisp/comp.el (comp-func):
* lisp/emacs-lisp/comp-cstr.el (comp-cstr-empty-p):
* lisp/emacs-lisp/cl-macs.el (cl-do):
(cl-do*):
(cl--self-tco):
* lisp/emacs-lisp/bytecomp.el (byte-compile-unresolved-functions):
(byte-compile-cond-jump-table): Don't quote t and nil.

Document isearch-wrap-pause

* doc/emacs/search.texi (Repeat Isearch): Document
`isearch-wrap-pause'.

New major mode with font-locking for etc/AUTHORS

* lisp/textmodes/etc-authors-mode.el: New file.  (Bug#50674)
* etc/AUTHORS (mode): Add "mode: etc-authors" to local variables.
* admin/authors.el (authors): Add "mode: etc-authors" to local
variables of the generated AUTHORS file.

; * doc/lispref/windows.texi (Cyclic Window Ordering): Fix typo.

Improve recently added documentation

* doc/lispref/lists.texi (Building Lists):
* lisp/subr.el (ensure-list): Avoid passive tense in documenting
'ensure-list'.

Add new function `ensure-list'

* doc/lispref/lists.texi (Building Lists): Document it.

* lisp/subr.el (ensure-list): New function.

* lisp/emacs-lisp/shortdoc.el (list): Mention it.

Merge branch 'master' of git.sv.gnu.org:/srv/git/emacs

Fix tramp-compat-temporary-file-directory implementation

* lisp/net/tramp-archive.el
(tramp-archive-handle-temporary-file-directory):
Use `tramp-compat-temporary-file-directory-function'.

* lisp/net/tramp-compat.el (tramp-compat-temporary-file-directory):
Make it a defconst.

* lisp/net/tramp.el (tramp-get-debug-buffer, tramp-get-debug-file-name)
(tramp-debug-message, tramp-file-name-handler, tramp-parse-file)
(tramp-parse-shostkeys-sknownhosts)
(tramp-handle-expand-file-name, tramp-handle-make-process)
(tramp-local-host-p, tramp-call-process)
(tramp-call-process-region, tramp-process-lines)
(tramp-read-passwd):
* lisp/net/tramp-adb.el (tramp-adb-maybe-open-connection):
* lisp/net/tramp-compat.el (tramp-compat-make-temp-name)
(tramp-compat-make-temp-file);
* lisp/net/tramp-crypt.el (tramp-crypt-file-name-for-operation)
(tramp-crypt-maybe-open-connection, tramp-crypt-send-command)
(tramp-crypt-do-encrypt-or-decrypt-file-name):
* lisp/net/tramp-fuse.el (tramp-fuse-mount-point, tramp-fuse-mounted-p)
(tramp-fuse-unmount):
* lisp/net/tramp-sh.el (tramp-do-copy-or-rename-file-out-of-band)
(tramp-sh-handle-expand-file-name)
(tramp-sh-handle-file-local-copy, )
(tramp-sh-handle-write-region, tramp-maybe-open-connection):
* lisp/net/tramp-smb.el (tramp-smb-maybe-open-connection): Use it.

; * lisp/emacs-lisp/checkdoc.el: Fix warnings.

Minor clean-up and fixes in checkdoc

* lisp/emacs-lisp/checkdoc.el: Minor doc fixes.  Remove unnecessary
space at the end of 'y-or-n-p' prompts.  Move obsolete definitions to
the end of the file.
(checkdoc-symbol-words, checkdoc-common-verbs-wrong-voice): Add
some more common words.

checkdoc: New defvars to disable some warnings

* lisp/emacs-lisp/checkdoc.el (checkdoc--argument-missing-flag)
(checkdoc--disambiguate-symbol-flag)
(checkdoc--interactive-docstring-flag): New defvars to disable some
warnings.  These are intended for use with Emacs itself rather than
with third-party libraries.
(checkdoc-this-string-valid, checkdoc-this-string-valid-engine):
Respect above new variables.

Add new command 'checkdoc-dired'

* lisp/emacs-lisp/checkdoc.el (checkdoc-dired): New command.
(checkdoc--dired-skip-lines-re): New constant.

More NEWS tagging

Do some NEWS tagging

Document `window-bump-use-time'

* doc/lispref/windows.texi (Cyclic Window Ordering): Mention
window-bump-use-time.

* lisp/tab-bar.el: Preserve all existing tab parameters when switching tabs.

* lisp/tab-bar.el (tab-bar--tab, tab-bar--current-tab-make):
Copy other possible tab parameters.
https://lists.gnu.org/archive/html/emacs-devel/2021-09/msg01544.html

Document completions-detailed

* doc/emacs/help.texi (Name Help): Document completions-detailed.
* lisp/minibuffer.el (completions-detailed): Give an example in
the doc string.

; * etc/NEWS: Refile recent addition (bug#50690).

Make dired-do-compress-to work in inserted subdirectories

* lisp/dired-aux.el (dired-do-compress-to): Make this work in file
in inserted subdirectories (bug#46913).

Revert "Make dired-compress-file query for a directory to uncompress to"

This reverts commit 7e395a59b025c7f4be49294ad806addf5b1a25c9.

The behaviour change isn't good for the majority of tar files.

Revert "Make recent dired tests check for external executables"

This reverts commit 98a17f30b8314e40a1edefac3d542d3e105c7bd6.

Reverting parent commit.

Restore some of the previous behaviour in whitespace-display-window

* lisp/whitespace.el (whitespace-display-window): Emulate previous
behaviour (bug#50716).  Code from martin rudalics <rudalics@gmx.at>.

; Stylistic docfixes in htmlfontify.el found by checkdoc

Don't use `format' on strings without % format directives

* lisp/vc/ediff-init.el (ediff-BAD-INFO):
* lisp/url/url-ldap.el (url-ldap):
* lisp/url/url-http.el (url-http--user-agent-default-string):
* lisp/textmodes/reftex.el (reftex-access-parse-file):
* lisp/textmodes/reftex-index.el (reftex-index-phrases-info):
* lisp/textmodes/ispell.el (ispell-create-debug-buffer):
* lisp/term.el (serial-read-speed):
* lisp/progmodes/verilog-mode.el (verilog-scan-debug):
* lisp/progmodes/idlwave.el (idlwave-find-module):
* lisp/progmodes/compile.el (compilation-revert-buffer):
* lisp/org/org-agenda.el (org-search-view):
* lisp/net/telnet.el (telnet-revert-buffer):
* lisp/net/soap-inspect.el (soap-sample-value-for-xs-simple-type):
* lisp/net/newst-backend.el (newsticker--cache-read):
* lisp/mh-e/mh-seq.el (mh-msg-is-in-seq):
* lisp/mail/smtpmail.el (smtpmail-via-smtp):
* lisp/mail/emacsbug.el (report-emacs-bug):
* lisp/jsonrpc.el (jsonrpc-error):
* lisp/help-fns.el (describe-variable):
* lisp/gnus/mm-decode.el (mm-possibly-verify-or-decrypt):
* lisp/gnus/gnus.el (gnus-group-startup-message):
(gnus-group-startup-message):
* lisp/gnus/gnus-group.el (gnus-group-restart):
* lisp/frame.el (make-frame-on-display):
* lisp/emulation/viper-ex.el (ex-help):
* lisp/calendar/icalendar.el (icalendar--convert-ical-to-diary):
(icalendar--add-diary-entry):
* lisp/calendar/cal-tex.el (cal-tex-end-document):
* lisp/calc/calcalg3.el (math-ninteg-romberg): Don't use `format'
on strings that have no % format directives in them.

Fix usage of `format' in mm-uu-pgp-encrypted-extract

* lisp/gnus/mm-uu.el (mm-uu-pgp-encrypted-extract): Use
`substring' instead of `format' to ensure a fresh string.

Fix usage of `format' in `article-verify-x-pgp-sig'

* lisp/gnus/gnus-art.el (article-verify-x-pgp-sig): Use
`substring' instead of `format' to ensure a fresh string.

Fix PGP verification buttons (which would have cached results)

* lisp/gnus/mm-uu.el (mm-uu-pgp-signed-extract): `format' was used
here to guarantee a new, fresh string (since it's destructively
modified), but that's apparently not the case any more.  Use
`substring' instead, which is documented to do this.

Don't inhibit redisplay in the mml* functions

* lisp/gnus/mml-smime.el (inhibit-redisplay): Removed.
(mml-smime-epg-encrypt):
(mml-smime-epg-verify): Don't inhibit.

* lisp/gnus/mml1991.el (mml1991-epg-sign): Ditto.

* lisp/gnus/mml2015.el (inhibit-redisplay): Removed
(mml2015-epg-decrypt):
(mml2015-epg-clear-decrypt):
(mml2015-epg-verify):
(mml2015-epg-clear-verify):
(mml2015-epg-sign):
(mml2015-epg-encrypt): Don't bind `inhibit-redisplay', because it
makes debugging very odd, and doesn't seem to help much with anything.

* python.el (python-syntax-stringify): Extend comment about last change

Fix emoji-zwj.awk dolist

* admin/unidata/emoji-zwj.awk: Fix typo, the dolist should end
after the first set-char-table-range.

Make recent dired tests check for external executables

* test/lisp/dired-aux-tests.el (dired-test-bug47058-tar)
(dired-test-bug47058-zip): Add skip conditions.

Rename project-remove-known-project to project-forget-project

* doc/emacs/maintaining.texi (Managing Projects): Ditto.

* etc/NEWS: Update accordingly.

* lisp/progmodes/project.el (project-forget-project):
Rename from 'project-remove-known-project', for consistency with
'project-remember-project' (discussed in bug#50297).

Consistently test alist keys with equal in map.el

* etc/NEWS: Announce new default behavior of map-elt and map-delete
on alists.

* lisp/emacs-lisp/map.el: Bump to version 3.2.
(map-elt): Test alist keys with equal by default.  Betray a little
bit more information in the docstring on which functions are used
for which map types.  (Bug#47368)
(map-put): Update docstring accordingly.
(map--plist-delete): Consistently test plist keys with eq.
(map-delete): Consistently test alist keys with equal.

* test/lisp/emacs-lisp/map-tests.el (test-map-elt-testfn): Update
for new map-elt behavior.
(test-map-put!-alist, test-map-delete-alist): New tests.

Remove the emoji script overrides for U+2xxx codepoints

* admin/unidata/blocks.awk: Remove the overrides for U+261D, U+26F9,
U+270C..U+270D, and U+2764.  They don't belong in the emoji script.

Fix the UK flag sequence composition regexp

* admin/unidata/emoji-zwj.awk: Fix the regexp for UK flags.
Thanks to Mattias Engdegård <mattiase@acm.org> and his magic
regexp checker.

Silence byte-compiler warning for network-stream-tests.el

The api specifically requires a symbol here, so we can't just replace
nowait with nil.

* test/lisp/net/network-stream-tests.el
(open-gnutls-stream-old-api-wait): Add explicit value for nowait
to silence byte-compiler warning due to Bug#47080.

Avoid double argument evaluation in vc-call macro

* lisp/vc/vc-hooks.el (vc-call): Ensure second argument is evaluated
only once (bug#50690).
* etc/NEWS (Change Logs and VC): Announce this change in behavior.

Make syntax-ppss more accurate for Python triple quotes (bug#49518)

By putting delimiter syntax on the last character of Python
triple-quoted strings, this makes syntax-ppss be more accurate.

Previously:

    emacs -Q something.py
    type two single quotes
    M-: (nth 3 (syntax-ppss))
    notice how the return value says you're outside a string, correctly
    type another quote
    M-: (nth 3 (syntax-ppss))
    notice how the return value says you're inside a string, correctly
    backspace the quote just entered
    M-: (nth 3 (syntax-ppss))
    notice how the return value says you're inside a string, incorrectly

With this patch the last step is corrected.  This helps things like
electric-pair-mode.  Also, the test
python-syntax-after-python-backspace now passes, again.

* lisp/progmodes/python.el (python-syntax-stringify): Put
delimiter syntax in "inner" of the surrouding triple quotes.

* test/lisp/progmodes/python-tests.el
(python-syntax-after-python-backspace): Passes again.

Expand and improve electric-pair-mode and Python testing (bug#49518)

In python-tests.el, the triple-quote pairing tests are passing
incorrectly, i.e. the auto-pairing functionality they purport to guard
isn't really working for users trying it interactively.  Added a new
failing test, soon to be fixed.

In electric-tests.el, added tests for Python, too.

* test/lisp/electric-tests.el (define-electric-pair-test): Also run
main tests for python-mode.  (pair-some-quotes-skip-others): Test
another slightly different pairing.

* test/lisp/progmodes/python-tests.el
(python-triple-double-quote-pairing): Rename from
python-triple-quote-pairing.
(python-triple-single-quote-pairing): New test.

Add docstring for 'electric-pair-p-s-i-f' and minor refactor

Extract the "open newline between pairs behaviour" into its own
function, electric-pair-open-newline-between-pairs-psif.

* lisp/elec-pair.el (electric-pair-post-self-insert-function): Add
docstring.
(electric-pair-open-newline-between-pairs-psif): New function.
(electric-pair-mode): Add/remove electric-pair-open-newline-between-pairs-psif

Speed up test/lisp/electric-tests.el when run interactively

'blink-paren-function' and its timers could sometimes interfere with
the tests and slow them down significantly.

* test/lisp/electric-tests.el (call-with-saved-electric-modes):
Bind blink-paren-function to nil.

; Minor checkdoc fixes in url/*.el

Fix whitespace-report window creation

* lisp/whitespace.el (whitespace-display-window): Avoid creating
many buffers if called many times (bug#50716).

Use `special-mode' for whitespace-report

* lisp/whitespace.el (whitespace-report-region): Use
`special-mode' instead of `fundamental-mode' (bug#50715).

Inhibit warning in mm-inline-wash-with-file from previous change

* lisp/gnus/mm-view.el (mm-inline-wash-with-file): Inhibit warning
about previous lexical fixup.

Fix problems with non-ASCII non-encoded PGP names

* lisp/epg.el (epg-signature-to-string): User IDs may be
non-encoded, non-ASCII (bug#50706).

Fix typo in tex--prettify-symbols-alist

* lisp/textmodes/tex-mode.el (tex--prettify-symbols-alist): Fix
varsigma typo (bug#50710).

Fix lexical fallout in mm-inline-wash-with-file

* lisp/gnus/mm-view.el (mm-inline-wash-with-file): This is only
called from the `links' handler, and it passes in `file' expecting
that to be dynamically bound.  Which is a very, very confusing
interface, but make that work again, anyway.

Make dired-compress-file query for a directory to uncompress to

* lisp/dired-aux.el (dired-compress-file-suffixes): Specify the
directory in the tar targets.
(dired-uncompress-file): New function (bug#47058).  This asks what
directory to uncompress to.
(dired-compress-file): Use it.

Clear netrc cache in auth-source test

* test/lisp/auth-source-tests.el
(auth-source-test-netrc-create-secret): Clear the netrc cache, too.

Only search netrc in the netrc tests

* test/lisp/auth-source-tests.el
(auth-source-test-netrc-create-secret): Only search netrc.

Remove some last calls to Gnus group name encoding

This should have been part of cb12a84f2c

* lisp/gnus/gnus-msg.el (gnus-summary-resend-message-insert-gcc,
gnus-inews-do-gcc): Don't encode group names.

; Mention it in NEWS too

New command: project-find-dir

* doc/emacs/maintaining.texi (Project File Commands):
Mention the new command and update the bindings information.

* lisp/progmodes/project.el (project-find-dir):
New command (bug#43153).
(project-prefix-map): Use 'd' as its binding.
Move 'project-dired' to 'D'.
(project-switch-commands):
Replace 'project-dired' with 'project-find-dir'.

Support for Unicode emoji sequences

This covers both sequences using Zero-Width-Joiner codepoints and
those without. Bug#39799, I hope.

* .gitignore: Add emoji-zwj.el
* admin/notes/unicode: Add emoji-zwj-sequences.txt and
emoji-sequences.txt references.  Describe how to test after updating
to a newer Unicode version.
* admin/unidata/Makefile.in (all): add emoji-zwj.el as a dependency.
(emoji-zwj.el): Add target plus rules for building.
(gen-clean): Add emoji-zwj.el.
* admin/unidata/README: Add emoji-zwj-sequences.txt and
emoji-sequences.txt references.
* admin/unidata/blocks.awk: Force emoji script to be used for certain
codepoints that are used by the Unicode sequences.
* admin/unidata/emoji-sequences.txt: New file.
* admin/unidata/emoji-zwj-sequences.txt: New file.
* admin/unidata/emoji-zwj.awk: New file.  Derives
composition-function-table rules from emoji-zwj-sequences.txt, plus
hardcodes some derived manually from emoji-sequences.txt.
* etc/NEWS: Announce change.
* lisp/international/characters.el: Load the generated emoji-zwj.el
* src/Makefile.in (emoji-zwj): New target.
(temacs): Add emoji-zwj as a dependency.

No longer raise error when http authentication failed

* lisp/url/url-http.el (url-http-handle-authentication): Return t
instead of raising an error, instructing the caller to invoke the
request specific error handler (bug#50511).

; admin/unidata/README: remove mistaken addition of local file