master updated (444dfc0 -> 1b11fca)

[Glenn Morris]

gm pushed a change to branch master.

      from  444dfc0   Reparent `gnus-article-mode-map' again
      adds  18308b7   Tweak recent 'configure' fix
      adds  4d76765   Fix md5 issue in recent Gnulib merge
      adds  1b383ac   Minor fix of a recently installed documentation change
      adds  d86b2e5   native-comp-available-p is the definitive test
      adds  ad2287e   Retain compatibility with older project.el projects
      adds  9f041cd   Bump project.el version
      adds  1cd1b28   * doc/misc/gnus.texi (Loose Threads): Use regexp-opt in 
example.
      adds  36a7ce4   ; * doc/emacs/trouble.texi (After a Crash): Fix typo.
      adds  d2a34ca   ; Very minor touch-up to a recent change
      adds  b2c50d7   Clarify docstring of blink-matching-paren
      adds  ead5c5c   Avoid using variable before it has been initialized
      adds  aacafbe   Refactor mh-utils-tests macro 'with-mh-test-env'
      adds  0f28ee9   * NEWS: Mention rcirc connects to #emacs by default
      adds  1ccd3eb   ; Fix typo in etc/NEWS
       new  1b11fca   Merge from origin/emacs-28


Summary of changes:
 admin/merge-gnulib                  |   5 +-
 configure.ac                        |   3 -
 doc/emacs/search.texi               |   4 +-
 doc/emacs/trouble.texi              |   2 +-
 doc/lispintro/emacs-lisp-intro.texi |   2 +-
 doc/lispref/compile.texi            |   3 +-
 doc/misc/gnus.texi                  |  21 ++----
 etc/NEWS.28                         |   5 +-
 lib/gnulib.mk.in                    |  12 ++-
 lib/md5-stream.c                    | 141 ++++++++++++++++++++++++++++++++++++
 lisp/emacs-lisp/package.el          |   3 +-
 lisp/ibuffer.el                     |   3 +-
 lisp/progmodes/project.el           |   2 +-
 lisp/progmodes/xref.el              |   2 +-
 lisp/simple.el                      |  15 ++--
 m4/gnulib-comp.m4                   |   2 +
 test/lisp/mh-e/mh-utils-tests.el    |  38 +++++-----
 17 files changed, 209 insertions(+), 54 deletions(-)
 create mode 100644 lib/md5-stream.c