Steve Klabnik 8f0de740f8 environment variables -> environment ...

As @sanxiyn says,
https://github.com/rust-lang/rust/pull/23527#issuecomment-83835448

2015-03-20 10:53:51 -04:00

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rustc.1

environment variables -> environment

2015-03-20 10:53:51 -04:00

rustdoc.1

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