master updated (6b80ff3 -> 1a850f4)

[Glenn Morris]

gm pushed a change to branch master.

      from  6b80ff3   * lisp/emacs-lisp/cl-macs.el (cl-deftype-satisfies): Add 
`keyword`
      adds  b87fc93   ; * src/xdisp.c (pos_visible_p): Yet another minor fix 
for bug#42039.
      adds  b9abf5c   Improve do string of 'man'
      adds  0121db2   * src/keyboard.c (Fclear_this_command_keys): Doc fix.
      adds  cce00be   Fix ACTION argument of 'display-buffer' call in gud.el
      adds  59e768d   Fix undefined behavior in json.c (Bug#42113)
       new  3b36b38   Merge from origin/emacs-27
      adds  2aa4be8   ; Auto-commit of loaddefs files.
       new  1e3f94f   ; Merge from origin/emacs-27
      adds  3c778c4   * doc/misc/tramp.texi (Customizing Methods): Fix typo.
      adds  d453cee   Minor improvement in ELisp manual
      adds  247dcb4   Clarify the documentation of 'left/right-fringe' display 
spec
      adds  71fc003   Avoid infloop in 'format-mode-line'
       new  1a850f4   Merge from origin/emacs-27


Summary of changes:
 doc/lispref/display.texi | 12 +++++++-----
 doc/lispref/frames.texi  | 13 +++++++------
 doc/misc/tramp.texi      |  9 +++++----
 lisp/man.el              |  6 +++++-
 lisp/progmodes/gud.el    |  6 +++---
 src/json.c               |  2 ++
 src/keyboard.c           |  2 +-
 src/xdisp.c              | 27 +++++++++++++++++++++++----
 test/src/json-tests.el   | 12 ++++++++++++
 9 files changed, 65 insertions(+), 24 deletions(-)