Only stringify rcon responses if debug enabled.

pkg/udpproxy/session.go

@@ -85,7 +85,7 @@ func (s *Session) proxyFrom(buf []byte) error {
 		return err
 	}
 
-	if s.isRconResponsePacket(buf) {
+	if s.isRconResponsePacket(buf) && log.GetLevel() == log.DebugLevel {
 		parts := strings.Split(string(buf[10:]), " ")
 		log.Debugf("Response: %s", strings.Join(parts, " "))
 	}