fix documentation for EarlyListener.Close (#5284)

* quic: update documentaion for EarlyListener.Close

* fix missing space

---------

Co-authored-by: Marten Seemann <martenseemann@gmail.com>

server.go

@@ -132,7 +132,7 @@ func (l *Listener) Accept(ctx context.Context) (*Conn, error) {
 // Close closes the listener.
 // Accept will return [ErrServerClosed] as soon as all connections in the accept queue have been accepted.
 // QUIC handshakes that are still in flight will be rejected with a CONNECTION_REFUSED error.
-// Already established (accepted)connections will be unaffected.
+// Already established (accepted) connections will be unaffected.
 func (l *Listener) Close() error {
 	return l.baseServer.Close()
 }
@@ -161,7 +161,10 @@ func (l *EarlyListener) Accept(ctx context.Context) (*Conn, error) {
 	return conn, nil
 }
 
-// Close the server. All active connections will be closed.
+// Close closes the listener.
+// Accept will return [ErrServerClosed] as soon as all connections in the accept queue have been accepted.
+// Early connections that are still in flight will be rejected with a CONNECTION_REFUSED error.
+// Already established (accepted) connections will be unaffected.
 func (l *EarlyListener) Close() error {
 	return l.baseServer.Close()
 }