Merge branch 'rs/clean-menu-item-defn' into maint

* rs/clean-menu-item-defn:
  clean: use f(void) instead of f() to declare a pointer to a function without arguments

builtin/clean.c

@@ -67,7 +67,7 @@ struct menu_item {
 	char hotkey;
 	const char *title;
 	int selected;
-	int (*fn)();
+	int (*fn)(void);
 };
 
 enum menu_stuff_type {