show failed statuses as warning

[grosser]

fixes #667

[k8s-ci-robot]

Hi @grosser. Thanks for your PR.

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[vteratipally]

/ok-to-test

[grosser]

double checked and this seems fine ... the glog.Level converts the int level

[grosser]

@vteratipally good to go ?

[Random-Liu]

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: grosser, Random-Liu

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