Updates with core::fmt changes

1. Wherever the `buf` field of a `Formatter` was used, the `Formatter` is used
   instead.
2. The usage of `write_fmt` is minimized as much as possible, the `write!` macro
   is preferred wherever possible.
3. Usage of `fmt::write` is minimized, favoring the `write!` macro instead.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/libstd/io/buffered.rs b/src/libstd/io/buffered.rs
index 68cbdd2e0aa..2880365cf34 100644
--- a/src/libstd/io/buffered.rs
+++ b/src/libstd/io/buffered.rs
@@ -16,7 +16,7 @@ use io::{Reader, Writer, Stream, Buffer, DEFAULT_BUF_SIZE, IoResult};
 use iter::ExactSize;
 use ops::Drop;
 use option::{Some, None, Option};
-use result::{Ok, Err, ResultUnwrap};
+use result::{Ok, Err};
 use slice::{ImmutableVector, MutableVector};
 use slice;
 use vec::Vec;