[tracker/tracker-0.6] Fixed warning

[Martyn James Russell <mr src gnome org>]

commit 47feb88021329cf644c9c9d78bbf2e97b93ecd98
Author: Martyn Russell <martyn imendio com>
Date:   Thu Jun 25 16:30:09 2009 +0100

    Fixed warning

 src/libtracker-common/tracker-ontology.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/libtracker-common/tracker-ontology.c b/src/libtracker-common/tracker-ontology.c
index b3c3222..0b57330 100644
--- a/src/libtracker-common/tracker-ontology.c
+++ b/src/libtracker-common/tracker-ontology.c
@@ -204,7 +204,7 @@ tracker_ontology_shutdown (void)
 
 	if (parent_services) {
 		g_slist_foreach (parent_services,
-				 g_object_unref,
+				 (GFunc) g_object_unref,
 				 NULL);
 		g_slist_free (parent_services);
 		parent_services = NULL;