Improve commented example for the never<T>() function
@@ -256,8 +256,8 @@ pub fn at(when: Instant) -> Receiver<Instant> {
///
/// // Create a channel that times out after the specified duration.
/// let timeout = duration
-/// .map(|d| after(d))
-/// .unwrap_or(never());
+/// .map(after)
+/// .unwrap_or_else(never);
///
/// select! {
/// recv(r) -> msg => assert_eq!(msg, Ok(1)),
