(Buffer-menu-revert): New function.

(Buffer-menu-mode-map): Use Buffer-menu-revert for g.
(Buffer-menu-mode): Doc fix.

lisp/buff-menu.el

@@ -91,7 +91,7 @@
   (define-key Buffer-menu-mode-map "m" 'Buffer-menu-mark)
   (define-key Buffer-menu-mode-map "t" 'Buffer-menu-visit-tags-table)
   (define-key Buffer-menu-mode-map "%" 'Buffer-menu-toggle-read-only)
-  (define-key Buffer-menu-mode-map "g" 'revert-buffer)
+  (define-key Buffer-menu-mode-map "g" 'Buffer-menu-revert)
   (define-key Buffer-menu-mode-map [mouse-2] 'Buffer-menu-mouse-select)
 )
 
@@ -123,7 +123,8 @@ Letters do not insert themselves; instead, they are commands.
 \\[Buffer-menu-unmark] -- remove all kinds of marks from current line.
   With prefix argument, also move up one line.
 \\[Buffer-menu-backup-unmark] -- back up a line and remove marks.
-\\[Buffer-menu-toggle-read-only] -- toggle read-only status of buffer on this line."
+\\[Buffer-menu-toggle-read-only] -- toggle read-only status of buffer on this line.
+\\[Buffer-menu-revert] -- update the list of buffers."
   (kill-all-local-variables)
   (use-local-map Buffer-menu-mode-map)
   (setq major-mode 'Buffer-menu-mode)
@@ -134,6 +135,11 @@ Letters do not insert themselves; instead, they are commands.
   (setq buffer-read-only t)
   (run-hooks 'buffer-menu-mode-hook))
 
+(defun Buffer-menu-revert ()
+  "Update the list of buffers."
+  (interactive)
+  (revert-buffer))
+
 (defun Buffer-menu-revert-function (ignore1 ignore2)
   (list-buffers))