use the newer replacement for Temporary errors

Author: willscott

server.go

@@ -61,7 +61,7 @@ func (s *Server) Serve(l net.Listener) error {
 	for {
 		conn, err := l.Accept()
 		if err != nil {
-			if ne, ok := err.(net.Error); ok && ne.Temporary() {
+			if ne, ok := err.(net.Error); ok && ne.Timeout() {
 				if tempDelay == 0 {
 					tempDelay = 5 * time.Millisecond
 				} else {