master updated (1bed252 -> 87811b4)

[Glenn Morris]

gm pushed a change to branch master.

      from  1bed252   Preserve the face foreground in Info-fontify-node
      adds  fa20e44   lisp/so-long.el: Improve support for major mode hooks
      adds  5578feb   ; * lisp/so-long.el: Documentation
      adds  1ca4da0   ; * etc/NEWS: fix some quoting
      adds  7cc85e7   ; Update etc/AUTHORS
      adds  a68b3f7   ; Update ChangeLog.3
      adds  a663419   * etc/HISTORY: Update the Emacs 27.1 release date.
      adds  86d8d76   ; lisp/ldefs-boot.el: Update.
       new  b9bc86e   Merge from origin/emacs-27
      adds  6dada01   ; Bump Emacs version to 27.1.50
       new  4431e6e   ; Merge from origin/emacs-27
      adds  63f614d   Fix comint-redirect-results-list regexp usage (Bug#42662)
       new  a1f9e7b   Merge from origin/emacs-27
      adds  f946e48   Fix face extension past EOL in overlay strings
      adds  c9a7394   Fix face merging at EOL when inherited face specifies 
:extend
       new  7b63844   ; Merge from origin/emacs-27
      adds  1c0bc1c   Improve documentation of special events
      adds  6956867   Improve documentation of function argument lists
       new  87811b4   Merge from origin/emacs-27


Summary of changes:
 ChangeLog.3                | 98 +++++++++++++++++++++++++++++++++++++++++++++-
 doc/lispref/commands.texi  |  7 ++++
 doc/lispref/functions.texi |  9 +++--
 etc/HISTORY                |  2 +-
 etc/NEWS.27                |  2 +-
 lisp/comint.el             |  2 +-
 lisp/ldefs-boot.el         |  6 +--
 lisp/so-long.el            | 64 +++++++++++++++++++++++++-----
 8 files changed, 170 insertions(+), 20 deletions(-)