Auto merge of #4893 - xftroxgpx:smalltypo1, r=alexcrichton
authorbors <bors@rust-lang.org>
Thu, 4 Jan 2018 01:52:41 +0000 (01:52 +0000)
committerbors <bors@rust-lang.org>
Thu, 4 Jan 2018 01:52:41 +0000 (01:52 +0000)
doc typo: "does contains" -> "does contain"


Trivial merge