[gnome-control-center] background: add FIXME for unused function

[Bastien Nocera <hadess src gnome org>]

commit 7854262a93b001883de95170d3f8e1cd642f7500
Author: Bastien Nocera <hadess hadess net>
Date:   Mon Sep 20 18:01:27 2010 +0100

    background: add FIXME for unused function

 panels/background/bg-wallpapers-source.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/panels/background/bg-wallpapers-source.c b/panels/background/bg-wallpapers-source.c
index 21d967f..f18d527 100644
--- a/panels/background/bg-wallpapers-source.c
+++ b/panels/background/bg-wallpapers-source.c
@@ -111,6 +111,7 @@ find_wallpaper (gpointer key,
   return item->bg == bg;
 }
 
+/* FIXME: Is this used for anything? */
 static void
 item_changed_cb (GnomeBG    *bg,
                  GnomeWpXml *data)