[vala] gtk+-2.0: parent argument to Gtk.show_about_dialog is nullable.

[Evan Nemerson <evann src gnome org>]

commit 2a2ce73f42cf68925602682d09d8c340f178690a
Author: Make Massonnet <mike massonnet gmail com>
Date:   Wed Jan 13 09:36:46 2010 -0800

    gtk+-2.0: parent argument to Gtk.show_about_dialog is nullable.
    
    Fixes bug 605051.

 vapi/gtk+-2.0.vapi                       |    2 +-
 vapi/packages/gtk+-2.0/gtk+-2.0.metadata |    1 +
 2 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/vapi/gtk+-2.0.vapi b/vapi/gtk+-2.0.vapi
index 1e2f379..3986db9 100644
--- a/vapi/gtk+-2.0.vapi
+++ b/vapi/gtk+-2.0.vapi
@@ -7699,7 +7699,7 @@ namespace Gtk {
 	[CCode (cheader_filename = "gtk/gtk.h")]
 	public static unowned string set_locale ();
 	[CCode (cheader_filename = "gtk/gtk.h")]
-	public static void show_about_dialog (Gtk.Window parent, ...);
+	public static void show_about_dialog (Gtk.Window? parent, ...);
 	[CCode (cheader_filename = "gtk/gtk.h")]
 	public static bool show_uri (Gdk.Screen? screen, string uri, uint32 timestamp) throws GLib.Error;
 	[CCode (cheader_filename = "gtk/gtk.h")]
diff --git a/vapi/packages/gtk+-2.0/gtk+-2.0.metadata b/vapi/packages/gtk+-2.0/gtk+-2.0.metadata
index 58c4dc9..951ecea 100644
--- a/vapi/packages/gtk+-2.0/gtk+-2.0.metadata
+++ b/vapi/packages/gtk+-2.0/gtk+-2.0.metadata
@@ -386,6 +386,7 @@ gtk_selection_data_set.length hidden="1"
 gtk_selection_data_set_uris.uris is_array="1" no_array_length="1"
 GtkSettings.queued_settings hidden="1"
 gtk_show_about_dialog ellipsis="1"
+gtk_show_about_dialog.parent nullable="1"
 gtk_show_uri.screen nullable="1"
 gtk_spin_button_get_range.min is_out="1"
 gtk_spin_button_get_range.max is_out="1"