[pygtk] Remove compiler warnings

[Gian Mario Tagliaretti <gianmt src gnome org>]

commit ed516297b7cddcce4c0ec211b3bb8b6ee9cfad8b
Author: Gian Mario Tagliaretti <gianmt gnome org>
Date:   Wed Aug 12 21:34:36 2009 +0200

    Remove compiler warnings
    
    make the compiler not complaining about strings not properly formatted

 gtk/gtk.override |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtk.override b/gtk/gtk.override
index 6583c9c..090de7c 100644
--- a/gtk/gtk.override
+++ b/gtk/gtk.override
@@ -6353,7 +6353,7 @@ _wrap_gtk_message_dialog_format_secondary_text(PyGObject *self, PyObject *args,
                                                  "%s", message_format);
     else
         gtk_message_dialog_format_secondary_text(GTK_MESSAGE_DIALOG(self->obj),
-                                                 message_format);
+                                                 NULL);
     Py_INCREF(Py_None);
     return Py_None;
 }
@@ -6376,7 +6376,7 @@ _wrap_gtk_message_dialog_format_secondary_markup(PyGObject *self, PyObject *args
                                                    "%s", message_format);
     else
         gtk_message_dialog_format_secondary_markup(GTK_MESSAGE_DIALOG(self->obj),
-                                                   message_format);
+                                                   NULL);
     Py_INCREF(Py_None);
     return Py_None;
 }