Auto merge of #5559 - alexcrichton:update-core-foundation, r=alexcrichton
authorbors <bors@rust-lang.org>
Wed, 23 May 2018 02:47:32 +0000 (02:47 +0000)
committerbors <bors@rust-lang.org>
Wed, 23 May 2018 02:47:32 +0000 (02:47 +0000)
Update version of core-foundation crate


Trivial merge