Adjust rules and add quotes around path

Change-Id: Ifca8d2f12010b0365d0a8f237609977d2610eb60
diff --git a/jobs.yaml b/jobs.yaml
index 2a0a1b3..52dfbbb 100644
--- a/jobs.yaml
+++ b/jobs.yaml
@@ -56,7 +56,7 @@
       - shell: "echo $dir; ~mininet/mininet/util/vm/build.py -v --test core --image $dir/*/*.vmdk"
     publishers:
       - logparser:
-            parse-rules: /home/mininet/vm-build/mininet-test.rules
+            parse-rules: "/home/mininet/vm-build/mininet-test.rules"
             unstable-on-warning: false
             fail-on-error: true