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Summary: minor formatting fixes

Reviewed By: ParalaxRus

Differential Revision: D40760744

fbshipit-source-id: 2d63f97736ad909696e8c37b0714a4160423f567

facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift