Auto merge of #5255 - matklad:rustdoc-features, r=alexcrichton
authorbors <bors@rust-lang.org>
Wed, 28 Mar 2018 14:21:26 +0000 (14:21 +0000)
committerbors <bors@rust-lang.org>
Wed, 28 Mar 2018 14:21:26 +0000 (14:21 +0000)
Restore --features args for cargo rustdoc

Closes https://github.com/rust-lang/cargo/issues/5254


Trivial merge