[gtk+] themingengine: Return NULL for nonexistant theming engines

[Benjamin Otte <otte src gnome org>]

commit 47635a24342c9a6e5c2463e0252e115d04d3496b
Author: Benjamin Otte <otte redhat com>
Date:   Thu Jul 21 02:41:10 2011 +0200

    themingengine: Return NULL for nonexistant theming engines
    
    his also makes the function conform to its documentation.

 gtk/gtkthemingengine.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkthemingengine.c b/gtk/gtkthemingengine.c
index 1e5d735..d076409 100644
--- a/gtk/gtkthemingengine.c
+++ b/gtk/gtkthemingengine.c
@@ -1020,8 +1020,7 @@ gtk_theming_engine_load (const gchar *name)
             }
         }
     }
-
-  if (!engine)
+  else
     {
       if (G_UNLIKELY (!default_engine))
         default_engine = g_object_new (GTK_TYPE_THEMING_ENGINE, NULL);