make client return statement more readable

Signed-off-by: kim (grufwub) <grufwub@gmail.com>

core/client.go

@@ -16,7 +16,11 @@ type Client struct {
 func NewClient(conn *net.TCPConn) *Client {
 	addr, _ := conn.RemoteAddr().(*net.TCPAddr)
 	ip, port := &addr.IP, strconv.Itoa(addr.Port)
-	return &Client{wrapConn(conn), ip, port}
+	return &Client{
+		cn:   wrapConn(conn),
+		ip:   ip,
+		port: port,
+	}
 }
 
 // Conn returns the underlying conn