[gtk+/gtk-2-16] Silence the conversion from xatom to atom too

[Matthias Clasen <matthiasc src gnome org>]

commit 31f94ca1cf423a317e4e26e3ead3a4fa89c22521
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Aug 20 18:06:35 2009 -0400

    Silence the conversion from xatom to atom too

 gdk/x11/gdkproperty-x11.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/gdk/x11/gdkproperty-x11.c b/gdk/x11/gdkproperty-x11.c
index c415dee..c1831f5 100644
--- a/gdk/x11/gdkproperty-x11.c
+++ b/gdk/x11/gdkproperty-x11.c
@@ -296,7 +296,9 @@ gdk_x11_xatom_to_atom_for_display (GdkDisplay *display,
   GdkAtom virtual_atom = GDK_NONE;
   
   g_return_val_if_fail (GDK_IS_DISPLAY (display), GDK_NONE);
-  g_return_val_if_fail (xatom != None, GDK_NONE);
+
+  if (xatom == None)
+    return GDK_NONE;
 
   if (display->closed)
     return GDK_NONE;