Merge from origin/emacs-27

a5f7c26907 (origin/emacs-27) * admin/authors.el: Add an author alias.
d87a4d1f4e Limit RLIMIT_NOFILE to FD_SETSIZE on macOS
e5ca8e5e73 Fix Elisp manual entry on 'set-window-configuration'
485f24223f ; Update ChangeLog.3
8f200254fb ; Update etc/AUTHORS
c7adc851ad * admin/authors.el: Add missing author aliases.
4acdd7fe58 Fix edge case errors in filename-matching regexps
5f36e21fe5 Clarify the doc string of 'yank'
13301d4266 New function erc-track-switch-buffer-other-window
38f7538d8f New function erc-switch-to-buffer-other-window

# Conflicts:
#	etc/NEWS

lisp/emacs-lisp/autoload.el

@@ -1047,7 +1047,7 @@ write its autoloads into the specified file instead."
                        ;; what is the suffix for the underlying OS.
 		       (unless (string-match "\\.\\(elc\\|so\\|dll\\)" suf)
                          (push suf tmp)))
-                     (concat "^[^=.].*" (regexp-opt tmp t) "\\'")))
+                     (concat "\\`[^=.].*" (regexp-opt tmp t) "\\'")))
 	 (files (apply #'nconc
 		       (mapcar (lambda (dir)
 				 (directory-files (expand-file-name dir)

lisp/emacs-lisp/shadow.el

@@ -99,7 +99,8 @@ See the documentation for `list-load-path-shadows' for further information."
 	(setq true-names (append true-names (list dir)))
 	(setq dir (directory-file-name (or pp ".")))
 	(setq curr-files (if (file-accessible-directory-p dir)
-			     (directory-files dir nil ".\\.elc?\\(\\.gz\\)?$" t)))
+			     (directory-files dir nil
+                                              "\\.elc?\\(?:\\.gz\\)?\\'" t)))
 	(and curr-files
 	     (not noninteractive)
 	     (message "Checking %d files in %s..." (length curr-files) dir))