Archiving artifacts correctly

Change-Id: Ibc792516675b22d277a552c0bbbc1a8b8527608f
diff --git a/jjb/pipeline/voltha-scale-test.groovy b/jjb/pipeline/voltha-scale-test.groovy
index 7d87f50..5a44375 100644
--- a/jjb/pipeline/voltha-scale-test.groovy
+++ b/jjb/pipeline/voltha-scale-test.groovy
@@ -350,7 +350,7 @@
         kubectl logs -l app=bbsim > $WORKSPACE/logs/bbsim-logs.logs
         kubectl logs -l app=onos > $WORKSPACE/logs/onos-logs.logs
       '''
-      archiveArtifacts artifacts: '$WORKSPACE/kind-voltha/install-minimal.log,$WORKSPACE/execution-time.txt,$WORKSPACE/logs/*'
+      archiveArtifacts artifacts: 'kind-voltha/install-minimal.log,execution-time.txt,logs/*'
     }
   }
 }