[gnome-control-center] libgd: Fix missing files in dist'ed tarball

[Bastien Nocera <hadess src gnome org>]

commit 1b4489c78007fab13c7f6e393f0ddb090a76205c
Author: Bastien Nocera <hadess hadess net>
Date:   Mon Jun 3 15:09:56 2013 +0200

    libgd: Fix missing files in dist'ed tarball
    
    This fixes the tarball compilation failures with 3.9.2

 libgd |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/libgd b/libgd
index 3abc95d..5bcd11f 160000
--- a/libgd
+++ b/libgd
@@ -1 +1 @@
-Subproject commit 3abc95da3c5b44484aeae3c69e3701da160bf057
+Subproject commit 5bcd11f1add8964ef0a056b2b7051bb97575a94b