[gnome-control-center/gnome-3-8] libgd: Update to master for GdHeaderBar bug fix

[Bastien Nocera <hadess src gnome org>]

commit 90ca908df4d5ace04aeaa446f6cfea2b4dd0ca9f
Author: Bastien Nocera <hadess hadess net>
Date:   Thu Feb 21 12:41:48 2013 +0100

    libgd: Update to master for GdHeaderBar bug fix

 libgd |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/libgd b/libgd
index 1098bdd..8c3d777 160000
--- a/libgd
+++ b/libgd
@@ -1 +1 @@
-Subproject commit 1098bdd6835baf4cd0342eca686528024d6c0839
+Subproject commit 8c3d777e1d18974d16d2ea0bdc13ad47f2f95da0