[jhbuild] Pin gitg to gnome-3-20 stable

[Jesse van den Kieboom <jessevdk src gnome org>]

commit 606206e98a006a20840e4382e012601d1a4eabcc
Author: Jesse van den Kieboom <jkieboom esri com>
Date:   Sun Jun 5 10:52:36 2016 +0200

    Pin gitg to gnome-3-20 stable

 modulesets/gnome-apps-3.20.modules |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/modulesets/gnome-apps-3.20.modules b/modulesets/gnome-apps-3.20.modules
index 9ed193d..7beb64b 100644
--- a/modulesets/gnome-apps-3.20.modules
+++ b/modulesets/gnome-apps-3.20.modules
@@ -520,7 +520,7 @@
   </autotools>
 
   <autotools id="gitg">
-    <branch/>
+    <branch revision="gnome-3-20"/>
     <dependencies>
       <dep package="gtk+"/>
       <dep package="glib"/>