Fix failing tidy (line endings on Windows) (#246)
Fix failing tidy (line endings on Windows) (#246)

This happens every time a new doc submodule is added to https://github.com/rust-lang/rust.
cc https://github.com/rust-lang/book/pull/549 https://github.com/rust-lang-nursery/reference/pull/36 https://github.com/rust-lang/rust-by-example/pull/1018
rust-lang/rustc-dev-guide,rust-lang/rustc-dev-guide,rust-lang/rustc-dev-guide,rust-lang/rustc-dev-guide