[gnome-control-center] user-panel: Fix memory leak of UmRealmManager

[Stefan Walter <stefw src gnome org>]

commit 1cffa8e206e7fb9f4a0dbab05c3a810b15ee2879
Author: Stef Walter <stefw gnome org>
Date:   Tue Jul 31 09:14:52 2012 +0200

    user-panel: Fix memory leak of UmRealmManager
    
    https://bugzilla.gnome.org/show_bug.cgi?id=680890

 panels/user-accounts/um-realm-manager.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/panels/user-accounts/um-realm-manager.c b/panels/user-accounts/um-realm-manager.c
index b5281c4..00c079f 100644
--- a/panels/user-accounts/um-realm-manager.c
+++ b/panels/user-accounts/um-realm-manager.c
@@ -178,6 +178,8 @@ um_realm_manager_load (UmRealmManager *self,
 
         if (load->outstanding == 0)
                 g_simple_async_result_complete_in_idle (async);
+
+        g_object_unref (async);
 }
 
 static GList *