master updated (23e6c36 -> 06738a4)

[Glenn Morris]

gm pushed a change to branch master.

      from  23e6c36   Implement a cache for all types of gravatars
      adds  16f4f26   Fix startup working dir bug on NeXTSTEP
      adds  cf0ee6f   ; spelling fixes
       new  013ddd1   Merge from origin/emacs-27
      adds  8ff5e34   Regexps cannot infloop; fix manual
       new  192247b   ; Merge from origin/emacs-27
      adds  19fa8b7   Note that Emacs needs systemd support if systemd is used 
to stop/start
      adds  98e8241   Document the 'flex' completion style
      adds  3c4edfd   Prevent from frozen frame after `C-z' in Lucid builds
      adds  6bff65a   ; * doc/lispref/sequences.texi (Sequence Functions): Typo 
Fix. (Bug#42871)
      adds  9b403d6   ; Fix last change
      adds  4542b75   Fix bug with ~/Emacs file not being read at init
      adds  dd989c0   * etc/NEWS: Mention GnuPG 2.0 through 2.1.5 issue 
(Bug#42845).
      adds  362ca83   Let Emacs start even if curdir is inaccessible
       new  06738a4   Merge from origin/emacs-27


Summary of changes:
 ChangeLog.3                 |  2 +-
 doc/emacs/mini.texi         |  7 +++++++
 doc/lispref/sequences.texi  |  6 +++---
 etc/NEWS.27                 | 14 ++++++++++----
 lisp/desktop.el             |  2 +-
 lisp/emacs-lisp/rx.el       |  4 ++--
 lisp/progmodes/cc-engine.el |  2 +-
 lisp/simple.el              |  2 +-
 lisp/startup.el             | 11 ++++++-----
 src/composite.c             |  2 +-
 src/emacs.c                 | 16 ++++++++++------
 src/xdisp.c                 |  4 ++--
 src/xfns.c                  |  2 +-
 src/xrdb.c                  |  4 ++--
 src/xterm.c                 | 14 ++++++++++++++
 15 files changed, 62 insertions(+), 30 deletions(-)