master updated (dc3006c -> b5474ba)

[Glenn Morris]

gm pushed a change to branch master.

      from  dc3006c   Pacify GCC 9.2.1 20190927 -O3
      adds  3bce7ec   CC Mode: Protect against consecutive calls to 
before-change-functions ...
      adds  e74fb46   * lisp/emacs-lisp/cursor-sensor.el 
(cursor-sensor--detect): Change last fix
      adds  9ec6eb1   vc-dir-ignore: More accurately choose base directory
      adds  af519a6   Define libgnutls-version properly
      adds  a95ec6e   * admin/authors.el: Add missing entries
      adds  4653baa   ; ChangeLog.3 update & fixes.
      adds  29e415d   ; ChangeLog.3 fixes
      adds  999d75c   Range-check width passed to define-fringe-bitmap
      adds  f9e5394   Fix documented slot name of eieio-instance-tracker class
      adds  009c6a1   ; ChangeLog.3 fixes
      adds  86e4da6   ; ChangeLog.3 update
      adds  9261b1e   * admin/authors.el (authors-ignored-files): Fix entries.
      adds  4aa758e   ; ChangeLog.3 update
      adds  5b7d226   * etc/AUTHORS: Update.
       new  1c81bb8   Merge from origin/emacs-27
      adds  d096bab   Bump Emacs version to 27.0.90
       new  b6c3921   ; Merge from origin/emacs-27
      adds  696ee02   checkdoc: Don't mistake "cf." for sentence end
      adds  ff729e3   ; bug#39779: Fix some typos in documentation.
      adds  4dec693   * lisp/vc/vc-cvs.el (vc-cvs-ignore): Copy-edit doc string
      adds  d767c35   Merge branch 'emacs-27' of 
git.savannah.gnu.org:/srv/git/emacs into emacs-27
      adds  5cca73d   * src/timefns.c (time_arith): Omit incorrect comment.
      adds  6dc2ebe   Fix overquoting in mule.el
      adds  9908b5a   Merge branch 'emacs-27' of 
git.savannah.gnu.org:/srv/git/emacs into emacs-27
      adds  d424195   Fix rx charset generation
      adds  5af9e5b   ; Add an entry to TODO
      adds  60c84ad   ; * etc/TODO: Fix last change.
      adds  c5f255d   ; Update lisp/ldefs-boot.el
      adds  6b48aed   * lisp/tab-line.el: Fix auto-hscrolling (bug#39649)
      adds  49d3cd9   rx: Improve 'or' compositionality (bug#37659)
      adds  366fd4f   ; * etc/NEWS: Fix typo.
      adds  b42b894   Fix fit-frame-to-buffer for multi-monitor setup
      adds  fe1a447   Don't attempt to cache glyph metrics for FONT_INVALID_CODE
      adds  1ca6d15   * doc/emacs/mini.texi (Yes or No Prompts): 'y-or-n-p' now 
uses the minibuffer.
      adds  d373647   ; * doc/emacs/mini.texi (Yes or No Prompts): Fix last 
change.
      adds  a38bebb   * etc/NEWS: More complete description of rx 'not' changes.
      adds  a4e4510   Fix handling MS-Windows keyboard input above the BMP
       new  6a0e1c4   Merge from origin/emacs-27
      adds  add0610   Fix implicit declaration of getenv and atol
       new  79f1965   ; Merge from origin/emacs-27
      adds  592b1cf   Improve documentation of next-error-highlight-no-select 
(bug#38778)
      adds  7cafbbe   Fix describe-variable on values with circular syntax 
(Bug#39805)
      adds  60418a1   Explain how to unset mode bindings (Bug#39802)
      adds  40b217c   Bump checkdoc-version to match library header
      adds  db37dd2   Don't misinterpret doc string as initial value
      adds  a1abf73   Fix combine-change-calls-1 for when buffer-undo-list is t
      adds  a3c2d18   CC Mode: Fix the handling of two adjacent 
after-change-functionses.
       new  b5474ba   Merge from origin/emacs-27


Summary of changes:
 ChangeLog.3                      |  519 ++++++++++-----
 admin/authors.el                 |   13 +-
 doc/emacs/building.texi          |    5 +-
 doc/emacs/custom.texi            |   17 +-
 doc/emacs/mini.texi              |   47 +-
 doc/lispref/frames.texi          |    2 +-
 doc/lispref/searching.texi       |    5 +-
 doc/lispref/tips.texi            |    2 +-
 doc/lispref/variables.texi       |    2 +-
 doc/misc/eieio.texi              |    4 +-
 doc/misc/gnus.texi               |    6 +-
 etc/AUTHORS                      | 1324 +++++++++++++++++++++++---------------
 etc/DEBUG                        |    4 +-
 etc/NEWS.27                      |   11 +-
 etc/TODO                         |   71 ++
 lisp/emacs-lisp/checkdoc.el      |    4 +-
 lisp/emacs-lisp/cursor-sensor.el |  112 ++--
 lisp/emacs-lisp/rx.el            |   82 ++-
 lisp/gnus/gnus-art.el            |    6 +-
 lisp/gnus/spam-stat.el           |    2 +-
 lisp/help-fns.el                 |    2 +
 lisp/international/mule.el       |    2 +-
 lisp/loadhist.el                 |    2 +-
 lisp/progmodes/cc-mode.el        |   50 +-
 lisp/progmodes/vhdl-mode.el      |    2 +-
 lisp/simple.el                   |   13 +-
 lisp/subr.el                     |   25 +-
 lisp/tab-line.el                 |   36 +-
 lisp/vc/vc-cvs.el                |   21 +-
 lisp/vc/vc-dir.el                |    7 +-
 lisp/vc/vc.el                    |   18 +-
 lisp/window.el                   |   13 +-
 src/composite.c                  |   18 +-
 src/font.c                       |    4 +-
 src/font.h                       |    2 +-
 src/fringe.c                     |    7 +-
 src/gnutls.c                     |   19 +-
 src/timefns.c                    |    4 +-
 src/w32term.c                    |   42 +-
 test/lisp/emacs-lisp/rx-tests.el |   24 +-
 40 files changed, 1637 insertions(+), 912 deletions(-)