Auto merge of #2323 - alexcrichton:update-libgit2, r=alexcrichton
authorbors <bors@rust-lang.org>
Thu, 28 Jan 2016 16:51:20 +0000 (16:51 +0000)
committerbors <bors@rust-lang.org>
Thu, 28 Jan 2016 16:51:20 +0000 (16:51 +0000)
Fixes a linkage error on linux if libhttp_parser is already installed.


Trivial merge