(define-minor-mode menu-bar-mode
"Toggle display of a menu bar on each frame (Menu Bar mode).
With a prefix argument ARG, enable Menu Bar mode if ARG is
-positive, and disable it otherwise. If called from Lisp, enable
-Menu Bar mode if ARG is omitted or nil.
+positive, and disable it otherwise. If called from Lisp, also
+enable Menu Bar mode if ARG is omitted or nil.
This command applies to all frames that exist and frames to be
created in the future."