[easy] ocamlformat workaround in statement.ml
[easy] ocamlformat workaround in statement.ml

Summary:
Hitting "save" repeatedly in vscode would add and remove an EOL after the changed code in perpetuity. This bypasses the issue.

Changelog: [internal]

Reviewed By: gkz

Differential Revision: D33352597

fbshipit-source-id: 465083501c364fdf859804e783cfdbb61037d201

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