Auto merge of #1498 - hugoduncan:add-cargo-home-to-config-doc, r=steveklabnik
authorbors <bors@rust-lang.org>
Wed, 8 Apr 2015 18:34:37 +0000 (18:34 +0000)
committerbors <bors@rust-lang.org>
Wed, 8 Apr 2015 18:34:37 +0000 (18:34 +0000)
Adds CARGO_HOME to the config documentation.


Trivial merge