auto merge of #12283 : kballard/rust/env-args-bytes, r=erickt

Change `os::args()` and `os::env()` to use `str::from_utf8_lossy()`.
Add new functions `os::args_as_bytes()` and `os::env_as_bytes()` to retrieve the args/env as byte vectors instead.

The existing methods were left returning strings because I expect that the common use-case is to want string handling.

Fixes #7188.

1 files changed, 1 insertions, 2 deletions

diff --git a/src/libstd/path/mod.rs b/src/libstd/path/mod.rs
index ed0ce201750..13496033fd0 100644
--- a/src/libstd/path/mod.rs
+++ b/src/libstd/path/mod.rs
@@ -578,8 +578,7 @@ impl BytesContainer for ~[u8] {
 impl BytesContainer for CString {
     #[inline]
     fn container_as_bytes<'a>(&'a self) -> &'a [u8] {
-        let s = self.as_bytes();
-        s.slice_to(s.len()-1)
+        self.as_bytes_no_nul()
     }
 }