Run "TZ=UTC0 admin/update-copyright".

* doc/emacs/buffers.texi (Misc Buffer): Add @kindex for 'C-x x r',
'C-x x u', 'C-x x i'.

* doc/emacs/display.texi (Line Truncation): Add @kindex for 'C-x x t'.

* doc/emacs/files.texi (Reverting): Add @kindex for 'C-x x g'.

* doc/emacs/windows.texi (Change Window): Use new keybinding 'C-x w 0'
instead of 'M-x delete-windows-on'.

* doc/misc/info.texi (Create Info buffer): Add @kindex for 'C-x x n'.

The node (info)Go to node in the Info manual states that 'g'
does not allow the use of abbreviations, however it does.
To test this, type 'gt' from this node and see that it takes
you to (info)Top, then type 'ggo<RET>' and see that it takes
you back to (info)Go to node.  Tested on emacs 28.2.
* doc/misc/info.texi (Go to node): Fix inaccurate information.
(Bug#60263)

Copyright-paperwork-exempt: yes

* doc/misc/info.texi (Search Index): Mention it.

* lisp/info.el (Info-find-node): Allow not signalling errors.
(Info-apropos-matches): Allow taking a regexp.
(info-apropos): Prefix now means looking for a regexp.

* doc/misc/efaq.texi (File-name conventions) Mention
Info-directory-list instead.

* doc/misc/info.texi (Emacs Info Variables): Mention
Info--default-directory-list.

* lisp/info.el (Info-default-directory-list): Default to nil to
avoid statting directories on Emacs startup (bug#27933).
(Info--default-directory-list): Factored out into own function.
(Info-default-dirs): Append value of Info-default-directory-list
to the value returned from Info--default-directory-list.