Auto merge of #4008 - alexcrichton:update-ssh, r=alexcrichton
authorbors <bors@rust-lang.org>
Mon, 8 May 2017 16:16:30 +0000 (16:16 +0000)
committerbors <bors@rust-lang.org>
Mon, 8 May 2017 16:16:30 +0000 (16:16 +0000)
Update libssh2-sys

It now has an updated initialization routine to hopefully get ssh working on
Windows, with a fix for alexcrichton/git2-rs#202


Trivial merge