Cap the number of modified files that will be logged
Cap the number of modified files that will be logged

Summary: When this list gets really long, it's just logspam. If there are that many modified files, it's not likely that we need to know the full path of each and every one.

Reviewed By: mroch

Differential Revision: D23598540

fbshipit-source-id: 48c3fb931bdbaa31a9ab5f3a75ee8975323eec7c

mroch/flow,facebook/flow,facebook/flow,facebook/flow,facebook/flow,mroch/flow,facebook/flow,facebook/flow,mroch/flow,facebook/flow,mroch/flow,mroch/flow,mroch/flow,mroch/flow