fix logging calls

[mikeweiwei]

What this PR does

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[k8s-ci-robot]

Hi @mikeweiwei. Thanks for your PR.

I'm waiting for a kubernetes member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: mikeweiwei To fully approve this pull request, please assign additional approvers. We suggest the following additional approver: andyxning

If they are not already assigned, you can assign the PR to them by writing /assign @andyxning in a comment when ready.

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[DirectXMan12]

Unfortunately, Heapster is in the last stage of its deprecation, and is slated for removal this release of kubernetes. Thank you for your contribution, though!