message: core: set default logger level to 'warning' in Release builds
  should hide unnecessary 'info' messages
diff: @@ -21,7 +21,13 @@ namespace logging {
  static LogLevel parseLogLevelConfiguration()
  {
  - static cv::String param_log_level = utils::getConfigurationParameterString("OPENCV_LOG_LEVEL", "INFO");
  + static cv::String param_log_level = utils::getConfigurationParameterString("OPENCV_LOG_LEVEL",
  +#if defined NDEBUG
  + "WARNING"
  +#else
  + "INFO"
  +#endif
  + );
  if (param_log_level == "DISABLED" || param_log_level == "disabled" ||
  param_log_level == "0" || param_log_level == "OFF" || param_log_level == "off")
  return LOG_LEVEL_SILENT;
  