Fix fmt-mangled comment
Fix fmt-mangled comment

Summary: ASCII art got messed up by autofmt in D31877242 (https://github.com/facebook/flow/commit/5752cfedbc34eafe42d9be441dc8c36e926906e1)

Reviewed By: gkz

Differential Revision: D35014622

fbshipit-source-id: 34ad1f316ea2b639350e858cc5348aeb9ef809aa

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