Better wording of Connection paragraph

quinn/src/connection.rs

@@ -280,9 +280,10 @@ impl Future for ConnectionDriver {
 /// automatically closed with an `error_code` of 0 and an empty `reason`. You can also close the
 /// connection explicitly by calling [`Connection::close()`].
 ///
-/// Closing the connection will make both peers immediately drop all the stream data not yet
-/// delivered to the application. [`Connection::close()`] describes in more detail how to
-/// gracefully close a connection without losing application data.
+/// Closing the connection immediately abandons efforts to deliver data to the peer.  Upon
+/// receiving CONNECTION_CLOSE the peer *may* drop any stream data not yet delivered to the
+/// application. [`Connection::close()`] describes in more detail how to gracefully close a
+/// connection without losing application data.
 ///
 /// May be cloned to obtain another handle to the same connection.
 ///