master updated (3952737 -> 98f10f4)

[Glenn Morris]

gm pushed a change to branch master.

      from  3952737   Revert "Obsolete XEmacs compat convention in 
erc-button-press-button"
      adds  75d9fbe   Tramp code cleanup
      adds  b497add   Fix Seccomp filter for newer GNU/Linux systems 
(Bug#51073).
      adds  5d408f1   Expanded testing of MH-E with multiple MH variants
      adds  bcce93f   Update to Org 9.5-46-gb71474
      adds  6bf2907   Avoid mapping file names through 'substring'
      adds  1d1e963   ; * lisp/emacs-lisp/shortdoc.el: Fix typo.
      adds  c2513c5   Add new failing test for bug#51089
      adds  4c7e74c   Complete shorthands to longhands for symbol-completing 
tables
      adds  ae61d7a   Fix point positioning on mouse clicks with non-zero 
line-height
      adds  013e3be   * lisp/userlock.el (ask-user-about-supersession-threat): 
Accept 'y' strictly.
      adds  a3e10af   Keep reading when typed RET in read-char-from-minibuffer 
and y-or-n-p
      adds  575e626   Add symbol property 'save-some-buffers-function' 
(bug#46374)
      adds  96278de   New function num-processors
      adds  07edc28   Fix ert errors when there's a test that binds 
`debug-on-error'
      adds  e9df860   Make tty-run-terminal-initialization load the .elc file 
(if any)
      adds  ab60144   ; Pacify recent shorthand unused lexarg warnings.
      adds  7cb4637   Minor fix to clarify a sentence in emacs-lisp-intro
      adds  1a1b206   Adapt the recent 'num_processors' change to MS-Windows
       new  8aceb37   Merge from origin/emacs-28
      adds  31d6048   Backport: Add ERC version to protocol log
       new  cc8c114   ; Merge from origin/emacs-28
      adds  36a485a   Obsolete XEmacs compat convention in 
'erc-button-press-button'
      adds  4afff51   Expand the full file name
      adds  c480b68   Add ERC entries for 
'customize-package-emacs-version-alist'
      adds  6c7947f   * etc/ERC-NEWS: Fix outline level for the recent 
additions.
      adds  a1a589d   * etc/ERC-NEWS: Announce ERC's addition to GNU ELPA.
      adds  ac06608   Release ERC 5.4
       new  98f10f4   Merge from origin/emacs-28


Summary of changes:
 admin/merge-gnulib                      |   3 +-
 doc/lispintro/emacs-lisp-intro.texi     |   6 +-
 doc/lispref/processes.texi              |  13 ++
 doc/misc/org.org                        |  71 +++---
 etc/ERC-NEWS                            |  63 ++---
 etc/NEWS.28                             |   4 +
 lib-src/seccomp-filter.c                |   2 +
 lib/gnulib.mk.in                        |  11 +
 lib/nproc.c                             | 403 ++++++++++++++++++++++++++++++++
 lib/nproc.h                             |  46 ++++
 lisp/emacs-lisp/comp.el                 |  15 +-
 lisp/emacs-lisp/ert.el                  |   4 +
 lisp/emacs-lisp/shortdoc.el             |   4 +-
 lisp/erc/erc-button.el                  |   3 +-
 lisp/erc/erc.el                         |  13 +-
 lisp/faces.el                           |   4 +-
 lisp/files.el                           |  12 +-
 lisp/help-fns.el                        |   7 +-
 lisp/minibuffer.el                      |  51 +++-
 lisp/net/tramp-adb.el                   |   8 +-
 lisp/net/tramp-sh.el                    |   8 +-
 lisp/net/tramp-smb.el                   |   2 +-
 lisp/net/tramp-sshfs.el                 |   2 +-
 lisp/net/tramp.el                       |  55 +++--
 lisp/org/oc-biblatex.el                 |  13 +-
 lisp/org/oc.el                          |  52 +++--
 lisp/org/ol-man.el                      |  86 +++++++
 lisp/org/org-footnote.el                |   5 +-
 lisp/org/org-lint.el                    |   2 +-
 lisp/org/org-version.el                 |   2 +-
 lisp/org/org.el                         |   2 +-
 lisp/progmodes/project.el               |  25 +-
 lisp/subr.el                            |   8 +-
 lisp/userlock.el                        |   4 +-
 lisp/vc/vc-git.el                       |  11 +-
 m4/gnulib-comp.m4                       |   5 +
 m4/nproc.m4                             |  54 +++++
 nt/gnulib-cfg.mk                        |   1 +
 src/process.c                           |  18 ++
 src/w32.c                               |  11 +
 src/w32proc.c                           |  10 -
 src/xdisp.c                             |   2 +
 test/lisp/mh-e/mh-utils-tests.el        |  94 ++++++--
 test/lisp/mh-e/test-all-mh-variants.sh  | 104 +++++++++
 test/lisp/progmodes/elisp-mode-tests.el |  24 ++
 test/src/process-tests.el               |   6 +
 46 files changed, 1134 insertions(+), 215 deletions(-)
 create mode 100644 lib/nproc.c
 create mode 100644 lib/nproc.h
 create mode 100644 lisp/org/ol-man.el
 create mode 100644 m4/nproc.m4
 create mode 100755 test/lisp/mh-e/test-all-mh-variants.sh