Fix example for BufferedReader

Fixes #18197

diff --git a/src/libstd/io/buffered.rs b/src/libstd/io/buffered.rs
index 95c44e6a3fc89c94712e0611a12f3d42b534a521..0316480fc2db32a93a962af4f7c765ca5ff332ec 100644 (file)
--- a/src/libstd/io/buffered.rs
+++ b/src/libstd/io/buffered.rs
@@ -130,14 +130,13 @@ fn read(&mut self, buf: &mut [u8]) -> IoResult<uint> {
 /// # Example
 ///
 /// ```rust
-/// # #![allow(unused_must_use)]
 /// use std::io::{BufferedWriter, File};
 ///
-/// let file = File::open(&Path::new("message.txt"));
+/// let file = File::create(&Path::new("message.txt")).unwrap();
 /// let mut writer = BufferedWriter::new(file);
 ///
-/// writer.write_str("hello, world");
-/// writer.flush();
+/// writer.write_str("hello, world").unwrap();
+/// writer.flush().unwrap();
 /// ```
 pub struct BufferedWriter<W> {
     inner: Option<W>,