(force-mode-line-update): Fix docstring.

diff --git a/lisp/subr.el b/lisp/subr.el
index 7baa71979acf3ea9664de1ffd2954e12bb1c2f9b..f7c026e9296fa689f124b8c3366da39e629a6d7b 100644 (file)
--- a/lisp/subr.el
+++ b/lisp/subr.el
@@ -1321,8 +1321,10 @@ This finishes the change group by reverting all of its changes."
 (defalias 'redraw-modeline 'force-mode-line-update)
 
 (defun force-mode-line-update (&optional all)
-  "Force the mode line of the current buffer to be redisplayed.
-With optional non-nil ALL, force redisplay of all mode lines."
+  "Force redisplay of the current buffer's mode line and header line.
+With optional non-nil ALL, force redisplay of all mode lines and
+header lines.  This function also forces recomputation of the
+menu bar menus and the frame title."
   (if all (save-excursion (set-buffer (other-buffer))))
   (set-buffer-modified-p (buffer-modified-p)))