[jhbuild] core-3.20: use the gnome-3-20 branch of gnome-calculator

[Alberts Muktupāvels <muktupavels src gnome org>]

commit c7a25496db1e43bd5d9d8a8ba99177f7ab12d254
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Sun Jun 26 16:03:43 2016 +0300

    core-3.20: use the gnome-3-20 branch of gnome-calculator

 modulesets/gnome-suites-core-3.20.modules |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/modulesets/gnome-suites-core-3.20.modules b/modulesets/gnome-suites-core-3.20.modules
index 9f6d40c..78c0cb5 100644
--- a/modulesets/gnome-suites-core-3.20.modules
+++ b/modulesets/gnome-suites-core-3.20.modules
@@ -766,7 +766,7 @@
   </autotools>
 
   <autotools id="gnome-calculator" supports-non-srcdir-builds="no">
-    <branch/>
+    <branch revision="gnome-3-20"/>
     <dependencies>
       <dep package="intltool"/>
       <dep package="glib"/>