`unsafe` keyword not properly handled by `spaceAroundParens` or `spaceAroundBrackets`

[rgoldberg]

The unsafe keyword is not properly handled by spaceAroundParens or spaceAroundBrackets:

error: (spaceAroundParens) Add or remove space around parentheses.

&

error: (spaceAroundBrackets) Add or remove space around square brackets.

from:

unsafe (["sudo"] + args).map { unsafe strdup($0) }

unsafe [kinfo_proc](repeating: kinfo_proc(), count: length / MemoryLayout<kinfo_proc>.stride)