More output from voltha-publish

Change-Id: I5c1879458977896c39ee64f39ca6e39b3edfb052
diff --git a/jjb/pipeline/voltha-publish.groovy b/jjb/pipeline/voltha-publish.groovy
index 4d3e65a..b5af555 100644
--- a/jjb/pipeline/voltha-publish.groovy
+++ b/jjb/pipeline/voltha-publish.groovy
@@ -30,6 +30,7 @@
       steps {
         sh """
           #!/usr/bin/env bash
+          set -x
 
           pushd cord/incubator/voltha
           if [ "${params.manifestBranch}" == "master" ]
@@ -49,6 +50,7 @@
         withDockerRegistry([credentialsId: 'docker-artifact-push-credentials', url: '']) {
           sh """
             #!/usr/bin/env bash
+            set -x
 
             pushd cord/incubator/voltha
             if [ "${params.manifestBranch}" == "master" ]