Make gofmt fails find usage

[drekle]

Find on mac requires path, where as in linux it does not appear to.

Mac:

usage: find [-H | -L | -P] [-EXdsx] [-f path] path ... [expression]

Linux:

Usage: find [-H] [-L] [-P] [-Olevel] [-D help|tree|search|stat|rates|opt|exec|time] [path...] [expression]

Added the path as this should work with both systems.

[mikesplain]

Thanks @drekle!

/lgtm
/approve

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[justinsb]

Sorry for this & you're quite right - thanks!

/lgtm

(though mike already got it - thanks mike!)