(sigh) cannot echo , groovy string will trigger an exception

Change-Id: Idc9ba66d4a54bacd837448d9a0cd92ba7a1eb5ae
diff --git a/jjb/voltha-e2e/voltha-2.8.yaml b/jjb/voltha-e2e/voltha-2.8.yaml
index e511ba5..67c4bda 100644
--- a/jjb/voltha-e2e/voltha-2.8.yaml
+++ b/jjb/voltha-e2e/voltha-2.8.yaml
@@ -1,5 +1,6 @@
 ---
 # voltha 2.0 tests
+# Force regeneration: ee6c143b23ae6acbade0ddcb6965bff3c757dd5a
 
 - project:
     name: voltha-e2e-2.8