[gnome-desktop] Update libgsystem

[Colin Walters <walters src gnome org>]

commit 3e49221d452067da4dbdfc90ba84c8ed7a72869b
Author: Colin Walters <walters verbum org>
Date:   Wed Aug 15 13:40:47 2012 -0400

    Update libgsystem

 libgnome-desktop/libgsystem |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/libgnome-desktop/libgsystem b/libgnome-desktop/libgsystem
index f287545..c4068ea 160000
--- a/libgnome-desktop/libgsystem
+++ b/libgnome-desktop/libgsystem
@@ -1 +1 @@
-Subproject commit f28754547bc28c091aa3bb5aa400d54d07218409
+Subproject commit c4068eaa793212eb7caad6e0ff2fb35e4aab184a