[gnome-control-center] user-accounts: do not display system accounts

[Thomas Wood <thos src gnome org>]

commit 26c44b2221786b9f9711cbf4240ce3a23ce771f3
Author: Philippe Coval <philippe coval eurogiciel fr>
Date:   Tue Jun 25 16:07:51 2013 +0200

    user-accounts: do not display system accounts
    
    This prevents the user panel from displaying system accounts
    and allowing the user to remove them.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=701514

 panels/user-accounts/um-user-panel.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/panels/user-accounts/um-user-panel.c b/panels/user-accounts/um-user-panel.c
index 464821d..ee61e4c 100644
--- a/panels/user-accounts/um-user-panel.c
+++ b/panels/user-accounts/um-user-panel.c
@@ -149,6 +149,10 @@ user_added (ActUserManager *um, ActUser *user, CcUserPanelPrivate *d)
         GtkTreeSelection *selection;
         gint sort_key;
 
+        if (act_user_is_system_account (user)) {
+                return;
+        }
+
         g_debug ("user added: %d %s\n", act_user_get_uid (user), get_real_or_user_name (user));
         widget = get_widget (d, "list-treeview");
         model = gtk_tree_view_get_model (GTK_TREE_VIEW (widget));