controller.go: Fix a glog typo

[gaocegege]

Signed-off-by: Ce Gao [email protected]

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This change is 

[k8s-ci-robot]

Hi @gaocegege. Thanks for your PR.

I'm waiting for a kubernetes or tensorflow 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.

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[coveralls]

Coverage remained the same at 31.856% when pulling 8aee482 on gaocegege:glog into 55058f2 on tensorflow:master.

[jlewi]

/ok-to-test

[jlewi]

Please sync so that we rerun the tests using Argo.

[gaocegege]

/test tf-k8s-presubmit

[gaocegege]

PTAL, the test passed 😄