Tom Coleman e99909cbc4 Fix linting on preact files
cc @BartWaardenburg -- I can't figure out why the linting was passing on `next` (perhaps you know why?) but it has started failing on `release/5.0`

If there is a better fix, let me know
2019-01-11 21:19:45 +11:00
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2019-01-11 21:19:45 +11:00