Document and extend menu-bar-make-toggle some

Document and extend menu-bar-make-toggle some

2020-09-19  Lars Ingebrigtsen  <larsi@gnus.org>

	* lisp/menu-bar.el (menu-bar-showhide-fringe-menu): Adjust caller.
	(menu-bar-search-options-menu): Ditto.
	(menu-bar-options-menu): Ditto.
	(menu-bar-options-menu): Ditto.

	* lisp/progmodes/gdb-mi.el (menu): Ditto.

	* lisp/emacs-lisp/find-func.el (find-function-regexp): Add
	menu-bar-make-toggle-command.

	* lisp/menu-bar.el (menu-bar-make-toggle): Compatibility wrapper.

2020-09-19  Drew Adams  <drew.adams@oracle.com>

	* lisp/menu-bar.el (menu-bar-make-toggle-command): Add doc string
	and allow setting all keywords (bug#17954).