;; Author: Sebastian Kremer <sk@thp.uni-koeln.de>.
;; Maintainer: FSF
;; Keywords: files
+;; Package: emacs
;; This file is part of GNU Emacs.
(restore-buffer-modified-p modflag)))
;;;###autoload
-(defun dired-hide-all (arg)
+(defun dired-hide-all (&optional ignored)
"Hide all subdirectories, leaving only their header lines.
If there is already something hidden, make everything visible again.
Use \\[dired-hide-subdir] to (un)hide a particular subdirectory."