Use log.Printf instead of log.Print

[toshiiw]

In order to supress "Print call has possible formatting directive" warnings.

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This change is 

[k8s-ci-robot]

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[k8s-ci-robot]

Hi @toshiiw. Thanks for your PR.

I'm waiting for a kubeflow 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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[johnugeorge]

/ok-to-test

[k8s-ci-robot]

@toshiiw: The following test failed, say /retest to rerun them all:

Test name	Commit	Details	Rerun command
kubeflow-katib-presubmit	cca31fd	link	/test kubeflow-katib-presubmit

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository. I understand the commands that are listed here.

[johnugeorge]

Thanks @toshiiw. Merged these changes in #363 as they were required for presubmits.

[toshiiw]

@johnugeorge thanks