Auto merge of #2208 - leodasvacas:clippy, r=alexcrichton
authorbors <bors@rust-lang.org>
Wed, 16 Dec 2015 04:51:56 +0000 (04:51 +0000)
committerbors <bors@rust-lang.org>
Wed, 16 Dec 2015 04:51:56 +0000 (04:51 +0000)
Changes suggested by clippy. Mostly replacing `to_string()` with alternatives.


Trivial merge