Auto merge of #5081 - matklad:document-not-all-the-things, r=alexcrichton
authorbors <bors@rust-lang.org>
Mon, 26 Feb 2018 23:50:53 +0000 (23:50 +0000)
committerbors <bors@rust-lang.org>
Mon, 26 Feb 2018 23:50:53 +0000 (23:50 +0000)
Support --exclude option for `cargo doc`

I think this should have been implemented when the feature was added for
other commands. Probably just an oversight.

cc https://github.com/rust-lang/cargo/pull/4031

r? @alexcrichton


Trivial merge