[sledge] Format as part of continuous testing
[sledge] Format as part of continuous testing

Summary:
The output of expect tests is not necessarily formatted, so include
reformatting in the continuous testing loop.

Differential Revision: D32511367

fbshipit-source-id: ee0e656e4

facebook/infer,facebook/infer,facebook/infer,facebook/infer,facebook/infer,facebook/infer,facebook/infer