Get rid of \r, which becomes <br> in jenkins console output

Change-Id: I15ff1a34074d714d8de07d1af2d0ee10b0f681f6
diff --git a/jobs.yaml b/jobs.yaml
index 012d4f1..bcae2de 100644
--- a/jobs.yaml
+++ b/jobs.yaml
@@ -37,7 +37,7 @@
     triggers:
       - timed: "@midnight"
     builders:
-      - shell: "~mininet/mininet/util/vm/build.py -v --test sanity {flavor}"
+      - shell: "set -o pipefail; ~mininet/mininet/util/vm/build.py -v --test sanity {flavor} | tr '\r' ' '"
     publishers:
       - archive:
             artifacts: '**'
@@ -54,7 +54,8 @@
             default: /var/lib/jenkins/jobs/mininet-{flavor}/workspace
             description: "$dir defaults to last build when using Build Now."
     builders:
-      - shell: "echo $dir; ~mininet/mininet/util/vm/build.py -v --test core --image $dir/*/*.vmdk"
+      - shell: "echo $dir"
+      - shell: "set -o pipefail; ~mininet/mininet/util/vm/build.py -v --test core --image $dir/*/*.vmdk | tr '\r' ' '"
     publishers:
       - logparser:
             parse-rules: "/home/mininet/vm-build/mininet-test.rules"