587cbaf988
Automatic merge from submit-queue Node E2E: Avoid printing test result twice. This is a problem since long time ago. `RunSshCommand` includes the command output to the error. If the command running the test fails, the test output will also be included in the error. [The runner prints both the test output and the error](https://github.com/kubernetes/kubernetes/blob/master/test/e2e_node/runner/remote/run_remote.go#L270), which leads the test result to be printed twice. (See the [test result](https://storage.googleapis.com/kubernetes-jenkins/logs/kubelet-gce-e2e-ci/10968/build-log.txt) on node tmp-node-e2e-af900a4d-e2e-node-ubuntu-trusty-docker9-v1-image) This PR changes `RunSshCommand` not to put command output into the error, and leave the caller to decide how to deal with command output when the command fails.