[libgd] GdStackSwitcher: minor nitpick

[Ignacio Casal Quinteiro <icq src gnome org>]

commit 507739072164d28a9b145d80c32ebc5b3f985160
Author: Ignacio Casal Quinteiro <icq gnome org>
Date:   Tue Feb 19 08:39:21 2013 +0100

    GdStackSwitcher: minor nitpick

 libgd/gd-stack-switcher.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/libgd/gd-stack-switcher.c b/libgd/gd-stack-switcher.c
index 3218ad0..d64832b 100644
--- a/libgd/gd-stack-switcher.c
+++ b/libgd/gd-stack-switcher.c
@@ -327,7 +327,7 @@ gd_stack_switcher_dispose (GObject *object)
   if (priv->buttons != NULL)
     {
       g_hash_table_unref (priv->buttons);
-      priv->buttons = 0;
+      priv->buttons = NULL;
     }
 
   g_clear_object (&priv->stack);