Align naming with mpsc::channel() docs
@@ -92,18 +92,18 @@ struct Inner<T> {
/// use futures::*;
///
/// fn main() {
-/// let (tx, rx) = oneshot::channel::<i32>();
+/// let (sender, receiver) = oneshot::channel::<i32>();
///
/// # let t =
/// thread::spawn(|| {
-/// let future = rx.map(|i| {
+/// let future = receiver.map(|i| {
/// println!("got: {:?}", i);
/// });
/// // ...
/// # return future;
/// });
///
-/// tx.send(3).unwrap();
+/// sender.send(3).unwrap();
/// # futures::executor::block_on(t.join().unwrap());
/// }
/// ```
