rewrite alloc.buffer

proxy/freedom/freedom_test.go

@@ -47,7 +47,8 @@ func TestSinglePacket(t *testing.T) {
 
 	traffic := ray.NewRay()
 	data2Send := "Data to be sent to remote"
-	payload := alloc.NewLocalBuffer(2048).Clear().Append([]byte(data2Send))
+	payload := alloc.NewLocalBuffer(2048)
+	payload.Append([]byte(data2Send))
 
 	go freedom.Dispatch(v2net.TCPDestination(v2net.LocalHostIP, tcpServer.Port), payload, traffic)
 	traffic.InboundInput().Close()