Minor fix

Change-Id: If165391566edcdb0db44483ad558420c6d99a88c
diff --git a/jjb/OnosSystemTest/onos-test-freestyle.yaml b/jjb/OnosSystemTest/onos-test-freestyle.yaml
index 269e6fa..a9f5441 100644
--- a/jjb/OnosSystemTest/onos-test-freestyle.yaml
+++ b/jjb/OnosSystemTest/onos-test-freestyle.yaml
@@ -664,9 +664,10 @@
       - 'init-CHO'
       - 'running-CHO'
       - 'post-CHO-{branch}':
-         branch: 'master'
-         branch: '1.13'
-         branch: '1.12'
+         branch: 
+           - 'master'
+           - '1.13'
+           - '1.12'
 
 - project:
     name: log-pipeline