window.c: Don't put titlebars on menu windows
diff --git a/clients/window.c b/clients/window.c
index 3502a95..17d16ed 100644
--- a/clients/window.c
+++ b/clients/window.c
@@ -4456,7 +4456,7 @@
 	window_set_buffer_scale (menu->window, window_get_buffer_scale (parent));
 	window_set_buffer_transform (menu->window, window_get_buffer_transform (parent));
 	menu->frame = frame_create(window->display->theme, 0, 0,
-				   FRAME_BUTTON_NONE, "Menu");
+				   FRAME_BUTTON_NONE, NULL);
 	menu->entries = entries;
 	menu->count = count;
 	menu->release_count = 0;