[gnome-games/wip/exalm/gtk4: 16/39] Switch retro-gtk to gtk4 branch

[Alexander Mikhaylenko <alexm src gnome org>]

commit deb493415ca5741e97d4285da15abda86c58d0b7
Author: Alexander Mikhaylenko <exalm7659 gmail com>
Date:   Thu Jul 26 19:34:43 2018 +0500

    Switch retro-gtk to gtk4 branch

 flatpak/org.gnome.Games.json | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/flatpak/org.gnome.Games.json b/flatpak/org.gnome.Games.json
index 9947d479..be0ee9bc 100644
--- a/flatpak/org.gnome.Games.json
+++ b/flatpak/org.gnome.Games.json
@@ -203,7 +203,8 @@
             "sources" : [
                 {
                     "type" : "git",
-                    "url" : "https://gitlab.gnome.org/GNOME/retro-gtk.git";
+                    "url" : "https://gitlab.gnome.org/exalm/retro-gtk.git";,
+                    "branch" : "gtk4"
                 }
             ]
         },