[pygtksourceview] set_mark_category_icon_from_icon_name() should accept None for name

[Gian Mario Tagliaretti <gianmt src gnome org>]

commit 213ee09935b2837f37cb580a08dae4110b6c01ce
Author: Gian Mario Tagliaretti <gianmt gnome org>
Date:   Mon Aug 17 18:11:18 2009 +0200

    set_mark_category_icon_from_icon_name() should accept None for name

 gtksourceview2.defs |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtksourceview2.defs b/gtksourceview2.defs
index 87c92c1..6047e42 100644
--- a/gtksourceview2.defs
+++ b/gtksourceview2.defs
@@ -928,7 +928,7 @@
   (return-type "none")
   (parameters
     '("const-gchar*" "category")
-    '("const-gchar*" "name")
+    '("const-gchar*" "name" (null-ok))
   )
 )