[gnome-control-center] privacy: Don't put an extra separator before the first row

[Matthias Clasen <matthiasc src gnome org>]

commit ef6405bfe7f8b6360743c89186ebe57d7a928aec
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Dec 5 18:30:03 2012 -0500

    privacy: Don't put an extra separator before the first row
    
    The separator function is called for each row, to allow creating
    the separator that goes before that row. We don't want a separator
    before the first row, so we return NULL if before == NULL.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=689746

 panels/privacy/cc-privacy-panel.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/panels/privacy/cc-privacy-panel.c b/panels/privacy/cc-privacy-panel.c
index 8b092c7..73bb8d3 100644
--- a/panels/privacy/cc-privacy-panel.c
+++ b/panels/privacy/cc-privacy-panel.c
@@ -616,6 +616,9 @@ update_separator_func (GtkWidget **separator,
                        GtkWidget  *before,
                        gpointer    user_data)
 {
+  if (before == NULL)
+    return;
+
   if (*separator == NULL)
     {
       *separator = gtk_separator_new (GTK_ORIENTATION_HORIZONTAL);