[gnome-control-center] network: Fix reference leak of NetVpn

[Bastien Nocera <hadess src gnome org>]

commit eb14e558e557165779239d037a1f9caaf99193be
Author: Bastien Nocera <hadess hadess net>
Date:   Wed Mar 18 18:14:48 2015 +0100

    network: Fix reference leak of NetVpn
    
    The only reference is owned by the devices GtkListStore.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=746411

 panels/network/cc-network-panel.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/panels/network/cc-network-panel.c b/panels/network/cc-network-panel.c
index 7086df4..1f2799c 100644
--- a/panels/network/cc-network-panel.c
+++ b/panels/network/cc-network-panel.c
@@ -1153,6 +1153,7 @@ panel_add_vpn_device (CcNetworkPanel *panel, NMConnection *connection)
                             PANEL_DEVICES_COLUMN_OBJECT, net_vpn,
                             -1);
         g_free (title);
+        g_object_unref (net_vpn);
 }
 
 static void