Fix indentation in CRF

[himkt]

• Fixed the wrong indentation.

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[tensorflowbutler]

Nagging Assignee @case540: It has been 44 days with no activity and this issue has an assignee. Please update the label and/or status accordingly.

[himkt]

@mrry @case540 what is status of this PR?
Can I close it?

[case540]

Huh, the internal CL got reverted for some reason. No idea what happen. WIll start the copybara migration thing again.