Collecting also .txt files

Change-Id: I4f97b229171632a01adc9986992f700eaf9df66d
diff --git a/jjb/pipeline/voltha-dt-physical-functional-tests.groovy b/jjb/pipeline/voltha-dt-physical-functional-tests.groovy
index 5f302ef..868ff56 100644
--- a/jjb/pipeline/voltha-dt-physical-functional-tests.groovy
+++ b/jjb/pipeline/voltha-dt-physical-functional-tests.groovy
@@ -355,7 +355,7 @@
         reportFileName: '**/report*.html',
         unstableThreshold: 0
         ]);
-      archiveArtifacts artifacts: '*.log,*.gz,*.tgz,etcd/*.log'
+      archiveArtifacts artifacts: '*.log,*.gz,*.tgz,etcd/*.log,*.txt'
     }
     unstable {
       step([$class: 'Mailer', notifyEveryUnstableBuild: true, recipients: "${notificationEmail}", sendToIndividuals: false])