[gtk+] Drop a reference to nonexisting API

[Matthias Clasen <matthiasc src gnome org>]

commit 3b8bf016047e25f5cdbcaf8f31bc50cc857b561f
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Dec 13 00:59:00 2013 -0500

    Drop a reference to nonexisting API
    
    The GtkApplicationWindow documentation had a reference
    to gtk_header_bar_set_show_fallback_app_menu(). That
    function no longer exists, so drop it.

 gtk/gtkapplicationwindow.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkapplicationwindow.c b/gtk/gtkapplicationwindow.c
index ce51233..1527251 100644
--- a/gtk/gtkapplicationwindow.c
+++ b/gtk/gtkapplicationwindow.c
@@ -84,7 +84,7 @@
  * property. If the desktop environment does not display the application
  * menu, then it will automatically be included in the menubar. It can
  * also be shown as part of client-side window decorations, e.g. by
- * using gtk_header_bar_set_show_fallback_app_menu().
+ * using gtk_header_bar_set_show_close_button().
  *
  * <example><title>A GtkApplicationWindow with a menubar</title>
  * <programlisting><![CDATA[