[gtksourceview] Fix warning

[Ignacio Casal Quinteiro <icq src gnome org>]

commit 4fecbbb45220f3ee9426c8a2a94dede5cd161212
Author: Ignacio Casal Quinteiro <icq gnome org>
Date:   Thu Jul 8 14:48:32 2010 +0200

    Fix warning

 tests/test-widget.py |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/tests/test-widget.py b/tests/test-widget.py
index 4bc7342..2fc1862 100644
--- a/tests/test-widget.py
+++ b/tests/test-widget.py
@@ -480,7 +480,7 @@ class Window(Gtk.Window):
     def indent_toggled_cb(self, action, current):
         self._view.set_indent_width(current.get_current_value())
 
-    def smart_home_end_toggled_cb(self, action, current):
+    def smart_home_end_toggled_cb(self, action, current, user_data=None):
         self._view.set_smart_home_end(current.get_current_value())
 
     def about_cb(self, action, user_data=None):