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Kubernetes Submit Queue d78f491103 Merge pull request #66734 from stewart-yu/stewart-e2e-badoutput

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fix wrong format output in e2e log

**What this PR does / why we need it**:
When i run e2e, occuring  some  output log as below:
```
STEP: Creating pod1
STEP: Creating a pod
Jul 28 14:09:12.876: INFO: pod "security-context-bd6750a8-922c-11e8-abe9-286ed488d743" created on Node "127.0.0.1"
Jul 28 14:09:12.876: INFO: Running '/usr/local/bin/kubectl --server=http://127.0.0.1:8080 --kubeconfig=/var/run/kubernetes/admin.kubeconfig exec --namespace=e2e-tests-persistent-local-volumes-test-dlbf7 security-context-bd6750a8-922c-11e8-abe9-286ed488d743 -- /bin/sh -c cat /mnt/volume1/test-file'
Jul 28 14:09:13.119: INFO: stderr: ""
Jul 28 14:09:13.119: INFO: stdout: "test-file-content\n"
Jul 28 14:09:13.119: INFO: podRWCmdExec out: "test-file-content\n" err: %!q(<nil>)
STEP: Writing in pod1
Jul 28 14:09:13.119: INFO: Running '/usr/local/bin/kubectl --server=http://127.0.0.1:8080 --kubeconfig=/var/run/kubernetes/admin.kubeconfig exec --namespace=e2e-tests-persistent-local-volumes-test-dlbf7 security-context-bd6750a8-922c-11e8-abe9-286ed488d743 -- /bin/sh -c mkdir -p /mnt/volume1; echo /tmp/local-volume-test-b97fe819-922c-11e8-abe9-286ed488d743 > /mnt/volume1/test-file'
Jul 28 14:09:13.331: INFO: stderr: ""
Jul 28 14:09:13.331: INFO: stdout: ""
Jul 28 14:09:13.331: INFO: podRWCmdExec out: "" err: %!q(<nil>)
STEP: Deleting pod1
STEP: Deleting pod security-context-bd6750a8-922c-11e8-abe9-286ed488d743 in namespace e2e-tests-persistent-local-volumes-test-dlbf7
STEP: Creating pod2
STEP: Creating a pod
```
the `podRWCmdExec out: "" err: %!q(<nil>)` line are wrong
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```

2018-07-30 18:29:45 -07:00