Merge from origin/emacs-26

Merge from origin/emacs-26

34fcfc5 (origin/emacs-26, emacs-26) * lisp/emacs-lisp/inline.el (defi...
f7a62c2 Fix doc string of 'footnote-style-alist'
c3b6742 Improve documentation of selecting windows
861d110 Improve documentation of records
22b3075 * etc/NEWS: Mention the removal of pinentry.el.  (Bug#27445)
689526b Fix interactive spec of 'semantic-ia-show-variants'
90ca37f Fix documentation of 'mouse-drag-and-drop-region' and friends
d60faf3 Improve detection of speller version in ispell.el
a0e3b06 Document 'mouse-drag-and-drop-region' options and mention the...
164e84c Fix uses of 'nil' and 'non-nil' in manuals and a few more min...
798f07f Document that mode commands should be idempotent.
ad2a47c ; * src/xdisp.c (extend_face_to_end_of_line): Fix last change.
88ddf53 Fontify a CPP construct correctly when a comment follows with...
de7de9c Prevent infloop in redisplay on TTY frames
293720e Fix loss of documentation face in certain CC Mode doc comment...

# Conflicts:
#	etc/NEWS
#	lisp/mail/footnote.el