Fix more minor mode docstrings.

[bpt/emacs.git] / lisp / progmodes / gud.el

diff --git a/lisp/progmodes/gud.el b/lisp/progmodes/gud.el
index 25a23fe..7b3a289 100644 (file)
--- a/lisp/progmodes/gud.el
+++ b/lisp/progmodes/gud.el
@@ -3255,7 +3255,10 @@ Treats actions as defuns."
 
 ;;;###autoload
 (define-minor-mode gud-tooltip-mode
-  "Toggle the display of GUD tooltips."
+  "Toggle the display of GUD tooltips.
+With a prefix argument ARG, enable the feature if ARG is
+positive, and disable it otherwise.  If called from Lisp, enable
+it if ARG is omitted or nil."
   :global t
   :group 'gud
   :group 'tooltip