[gimp] Bug 791351 - Use an anonymous checkout for the flathub repo.

[Jehan Pagès <jehanp src gnome org>]

commit 5d0e17c5b59e56074d7917eaafb08e19d8a93fbf
Author: Jehan <jehan girinstud io>
Date:   Thu Dec 7 18:47:37 2017 +0100

    Bug 791351 - Use an anonymous checkout for the flathub repo.
    
    Sorry!

 .gitmodules |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/.gitmodules b/.gitmodules
index 0d78e97..9b6d610 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,3 @@
 [submodule "build/flatpak/flathub"]
        path = build/flatpak/flathub
-       url = git github com:flathub/org.gimp.GIMP.git
+       url = https://github.com/flathub/org.gimp.GIMP.git