Minor fix to GTK tool-bar button refresh code.

* gtkutil.c (update_frame_tool_bar): Don't advance tool-bar index
when removing extra buttons.

src/ChangeLog

+2011-01-09  Chong Yidong  <cyd@stupidchicken.com>
+
+	* gtkutil.c (update_frame_tool_bar): Don't advance tool-bar index
+	when removing extra buttons.
+
 2011-01-08  Chong Yidong  <cyd@stupidchicken.com>
 	* fns.c (Fyes_or_no_p): Doc fix.

src/gtkutil.c

@@ -4439,7 +4439,7 @@ update_frame_tool_bar (FRAME_PTR f)
   /* Remove buttons not longer needed.  */
   do
     {
-      ti = gtk_toolbar_get_nth_item (GTK_TOOLBAR (wtoolbar), j++);
+      ti = gtk_toolbar_get_nth_item (GTK_TOOLBAR (wtoolbar), j);
       if (ti)
 	gtk_container_remove (GTK_CONTAINER (wtoolbar), GTK_WIDGET (ti));
     } while (ti != NULL);