Auto merge of #4909 - zackmdavis:tidy_paren, r=matklad
authorbors <bors@rust-lang.org>
Sat, 6 Jan 2018 18:10:30 +0000 (18:10 +0000)
committerbors <bors@rust-lang.org>
Sat, 6 Jan 2018 18:10:30 +0000 (18:10 +0000)
commitcb580886e944ea7cafd44a3ccb690199032509f2
treefc8ba386db221939338aa7b59728b46641cf94cf
parenta44612f2d420dca53a17ebb5d95fd0cd94f48d81
parent16bb93688a849d2af3788cba17ea7486e29d8f73
Auto merge of #4909 - zackmdavis:tidy_paren, r=matklad

unblock rust-lang/rust#46980 by cleaning up an unused pair of parentheses

While this might seem like too trivial of a stylistic nitpick to deserve
its own commit, this [is needed to unblock](https://github.com/rust-lang/rust/pull/46980#issuecomment-355565906) the PR rust-lang/rust#46980 (which makes
the unused-parens lint look at function arguments, which it previously didn't).