VOL-2642 Allow empty JUnit results

Change-Id: I348d446b185ae705411ccd93fe031e5f16776b09
diff --git a/jjb/verify/cord-tester.yaml b/jjb/verify/cord-tester.yaml
index 479eb4a..60d7ccb 100644
--- a/jjb/verify/cord-tester.yaml
+++ b/jjb/verify/cord-tester.yaml
@@ -21,6 +21,7 @@
       - 'make-unit-test':
           dependency-jobs: 'verify_cord-tester_tag-collision'
           unit-test-targets: 'lint test'
+          junit-allow-empty-results: true
 
 - job-group:
     name: 'publish-cord-tester-jobs'