patch 7.4.1207
Problem:    Using old style function declarations.
Solution:   Change to new style function declarations. (script by Hirohito
            Higashi)
diff --git a/src/gui_gtk.c b/src/gui_gtk.c
index b5da5c3..99e4d70 100644
--- a/src/gui_gtk.c
+++ b/src/gui_gtk.c
@@ -1988,8 +1988,7 @@
  * ":helpfind"
  */
     void
-ex_helpfind(eap)
-    exarg_T	*eap UNUSED;
+ex_helpfind(exarg_T *eap UNUSED)
 {
     /* This will fail when menus are not loaded.  Well, it's only for
      * backwards compatibility anyway. */