Merge from origin/emacs-27

53933cdf5c ; * lisp/international/mule.el (define-coding-system): Doc...
e90ffcf759 * src/w32fns.c (Fw32_register_hot_key): Doc fix.  (Bug#44456)
89740e9cb5 Prevent redisplay from moving point behind user's back
5932df7435 Document that the :match function for a widget takes an ex...
1b7ab9d0ac Don't render XML declaration of an HTML document (bug#44348)

# Conflicts:
#	lisp/international/mule.el

diff --cc doc/misc/widget.texi
Simple merge

diff --cc lisp/international/mule.el
index ad9c3a230666105b278dba6513358ce9611ea58b,c47f0722544dc855d1b71c5cadba4b6a0cd91b71..212e7232b492da40430a8394cb8aa0d471f1ff6e
--- 1/lisp/international/mule.el
--- 2/lisp/international/mule.el
+++ b/lisp/international/mule.el
@@@ -855,11 -874,14 +855,14 @@@ VALUE is a CCL program name defined by 
  CCL program reads a character sequence and writes a byte sequence
  as an encoding result.
  
 -`:inhibit-nul-byte-detection'
 +`:inhibit-null-byte-detection'
  
- VALUE non-nil means Emacs ignore null bytes on code detection.
+ VALUE non-nil means Emacs should ignore null bytes on code detection.
 -See the variable `inhibit-nul-byte-detection'.  This attribute
 +See the variable `inhibit-null-byte-detection'.  This attribute
  is meaningful only when `:coding-type' is `undecided'.
+ If VALUE is t, Emacs will ignore null bytes unconditionally while
+ detecting encoding.  If VALUE is non-nil and not t, Emacs will
+ ignore null bytes if `inhibit-null-byte-detection' is non-nil.
  
  `:inhibit-iso-escape-detection'
  

diff --cc lisp/net/eww.el
Simple merge

diff --cc src/bidi.c
Simple merge

diff --cc src/w32fns.c
Simple merge