master updated (cdede98 -> 215cead)

[Glenn Morris]

gm pushed a change to branch master.

      from  cdede98   * lisp/progmodes/cc-cmds.el: Don't use local vars as 
symbols
      adds  e898442   Honor tags-case-fold-search during xref identifer 
completion
      adds  2391d3f   ; spelling fixes
      adds  36a4068   ERC: New maintainer.
      adds  db4436e   Fix the notification action for PRIVMSG in 
erc-notifications-notify
      adds  74b1511   Fix erc-notifications-notify for non-PRIVMSGs, broken in 
last commit
      adds  4217bc2   Fix infloop in shell.el
      adds  f3d30b5   Remove some doc references to old Emacs versions
       new  519de2f   Merge from origin/emacs-27
      adds  5118394   Ensure that gnus-summary-attach-article finds the right 
articles
       new  1a54e50   ; Merge from origin/emacs-27
      adds  fabf006   Doc fixes in package.el
      adds  c134978   Remove reference to Emacs 19 from FAQ
      adds  2eb0b78   Fix shell-command-dont-erase-buffer feature
      adds  83f9fe4   ; * etc/NEWS: Fix typo.
      adds  3543b9f   ; Fix a test (Bug#39067)
      adds  dde3131   * lisp/menu-bar.el (menu-bar-options-menu): Add 
desktop-save-mode (bug#37594)
      adds  92f30d6   * lisp/tab-line.el (tab-line-auto-hscroll): Fix for long 
tab names.
      adds  891f7de   * test/lisp/simple-tests.el: Full path to Emacs binary 
(bug#39067).
      adds  fd19282   Fix shell-tests failures
      adds  154cd11   * admin/release-process: Adapt bug numbers for release 
critical bugs.
       new  215cead   Merge from origin/emacs-27


Summary of changes:
 admin/MAINTAINERS                     | 10 ++++++
 admin/release-process                 | 12 +++++---
 doc/emacs/anti.texi                   |  2 +-
 doc/emacs/misc.texi                   | 14 +++++----
 doc/lispref/internals.texi            |  2 +-
 doc/lispref/modes.texi                |  2 +-
 doc/misc/efaq.texi                    | 34 +++++----------------
 etc/NEWS.27                           | 14 ++++++++-
 lisp/emacs-lisp/package.el            | 12 ++++++--
 lisp/emacs-lisp/rx.el                 |  2 +-
 lisp/erc/erc-autoaway.el              |  2 +-
 lisp/erc/erc-backend.el               |  2 +-
 lisp/erc/erc-button.el                |  2 +-
 lisp/erc/erc-capab.el                 |  2 +-
 lisp/erc/erc-compat.el                |  2 +-
 lisp/erc/erc-dcc.el                   |  2 +-
 lisp/erc/erc-desktop-notifications.el | 11 ++++---
 lisp/erc/erc-ezbounce.el              |  2 +-
 lisp/erc/erc-fill.el                  |  2 +-
 lisp/erc/erc-goodies.el               |  2 +-
 lisp/erc/erc-ibuffer.el               |  2 +-
 lisp/erc/erc-identd.el                |  2 +-
 lisp/erc/erc-imenu.el                 |  2 +-
 lisp/erc/erc-join.el                  |  2 +-
 lisp/erc/erc-lang.el                  |  2 +-
 lisp/erc/erc-list.el                  |  2 +-
 lisp/erc/erc-log.el                   |  2 +-
 lisp/erc/erc-match.el                 |  2 +-
 lisp/erc/erc-menu.el                  |  2 +-
 lisp/erc/erc-netsplit.el              |  2 +-
 lisp/erc/erc-networks.el              |  2 +-
 lisp/erc/erc-notify.el                |  2 +-
 lisp/erc/erc-page.el                  |  2 +-
 lisp/erc/erc-pcomplete.el             |  2 +-
 lisp/erc/erc-replace.el               |  2 +-
 lisp/erc/erc-ring.el                  |  2 +-
 lisp/erc/erc-services.el              |  2 +-
 lisp/erc/erc-sound.el                 |  2 +-
 lisp/erc/erc-speedbar.el              |  2 +-
 lisp/erc/erc-spelling.el              |  2 +-
 lisp/erc/erc-stamp.el                 |  2 +-
 lisp/erc/erc-track.el                 |  2 +-
 lisp/erc/erc-truncate.el              |  2 +-
 lisp/erc/erc-xdcc.el                  |  2 +-
 lisp/erc/erc.el                       |  2 +-
 lisp/gnus/gnus.el                     |  2 +-
 lisp/mail/rmailsum.el                 |  2 +-
 lisp/menu-bar.el                      | 12 ++++++++
 lisp/progmodes/etags.el               | 23 ++++++++------
 lisp/progmodes/gdb-mi.el              |  2 +-
 lisp/progmodes/xref.el                |  8 ++++-
 lisp/shell.el                         |  2 +-
 lisp/simple.el                        | 57 +++++++++++++++++++++++++----------
 lisp/tab-line.el                      | 28 +++++++++--------
 lisp/textmodes/ispell.el              |  2 +-
 lisp/woman.el                         |  2 +-
 test/lisp/shell-tests.el              |  7 +++++
 test/lisp/simple-tests.el             | 56 ++++++++++++++++++++++++++++++++++
 58 files changed, 259 insertions(+), 127 deletions(-)