[gnome-system-log] Fix libgd module location

[Giovanni Campagna <gcampagna src gnome org>]

commit 7cec6bc7b8b564c03b2ad16bbe4b36b54d3699ab
Author: Giovanni Campagna <gcampagna src gnome org>
Date:   Sun Dec 30 16:00:49 2012 +0100

    Fix libgd module location
    
    Using a relative location fails with ostbuild
    
    https://bugzilla.gnome.org/show_bug.cgi?id=691503

 .gitmodules |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/.gitmodules b/.gitmodules
index 303eb9b..bfd964e 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,3 @@
 [submodule "libgd"]
 	path = libgd
-	url = ../libgd
+	url = git://git.gnome.org/libgd