Rename std::path to std::old_path

As part of [RFC 474](https://github.com/rust-lang/rfcs/pull/474), this
commit renames `std::path` to `std::old_path`, leaving the existing path
API in place to ease migration to the new one. Updating should be as
simple as adjusting imports, and the prelude still maps to the old path
APIs for now.

[breaking-change]

1 files changed, 1 insertions, 1 deletions

diff --git a/src/libstd/env.rs b/src/libstd/env.rs
index 5070f8c547a..559a68542ef 100644
--- a/src/libstd/env.rs
+++ b/src/libstd/env.rs
@@ -57,7 +57,7 @@ pub fn current_dir() -> IoResult<Path> {
 ///
 /// ```rust
 /// use std::env;
-/// use std::path::Path;
+/// use std::old_path::Path;
 ///
 /// let root = Path::new("/");
 /// assert!(env::set_current_dir(&root).is_ok());