Make prow e2e test failure actually fail (#3689)
Make prow e2e test failure actually fail (#3689)

* Make test failure actually fail

* Set pipefail on the same line

istio/istio,smawson/istio,geeknoid/istio,smawson/istio,geeknoid/istio,smawson/istio,istio/istio,istio/istio,smawson/istio,geeknoid/istio,geeknoid/istio,frankbu/istio,geeknoid/istio,istio/istio,frankbu/istio,smawson/istio,frankbu/istio,frankbu/istio,geeknoid/istio,frankbu/istio,smawson/istio,istio/istio,frankbu/istio