[gnome-control-center] network: Fix crash entering IPv4 Gateway

[Bastien Nocera <hadess src gnome org>]

commit 7f601cfed4eb4a07d2a480b1b8ec89391925b7e8
Author: Bastien Nocera <hadess hadess net>
Date:   Wed Sep 14 17:13:39 2016 +0200

    network: Fix crash entering IPv4 Gateway
    
    The wrong destructor was used for a GPtrArray of NMIPAddress.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=771432

 panels/network/connection-editor/ce-page-ip4.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/panels/network/connection-editor/ce-page-ip4.c b/panels/network/connection-editor/ce-page-ip4.c
index bcc7e0b..70187e8 100644
--- a/panels/network/connection-editor/ce-page-ip4.c
+++ b/panels/network/connection-editor/ce-page-ip4.c
@@ -686,7 +686,7 @@ ui_to_setting (CEPageIP4 *page)
                 }
         }
 
-        addresses = g_ptr_array_new_with_free_func (g_object_unref);
+        addresses = g_ptr_array_new_with_free_func (nm_ip_address_unref);
         if (g_str_equal (method, NM_SETTING_IP4_CONFIG_METHOD_MANUAL))
                 children = gtk_container_get_children (GTK_CONTAINER (page->address_list));
         else