[recipes] Use git.gnome.org in the flatpak recipe

[Matthias Clasen <matthiasc src gnome org>]

commit 28d56b18530f38c012d50cc2dc04b586171d302c
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Dec 15 15:44:15 2016 -0500

    Use git.gnome.org in the flatpak recipe
    
    This will become the canonical location anyway.

 org.gnome.Recipes.flatpak.json |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/org.gnome.Recipes.flatpak.json b/org.gnome.Recipes.flatpak.json
index b0b6854..eab09d6 100644
--- a/org.gnome.Recipes.flatpak.json
+++ b/org.gnome.Recipes.flatpak.json
@@ -47,7 +47,7 @@
             "sources": [
                     {
                         "type": "git",
-                        "url": "https://github.com/matthiasclasen/gr.git";
+                        "url": "git://git.gnome.org/recipes"
                     }
             ]
         }