code: function getCommandLineNodeConfig () {
    if (commandLineNodeConfig === undefined) {
      var argv = process.argv.slice(2, process.argv.length);
      for (var i = 0; i < argv.length; i++) {
        if (startsWith(argv[i], '--NODE_CONFIG=')) {
          commandLineNodeConfig = parseJSON(argv[i].substring('--NODE_CONFIG='.length), 'Unable to parse the JSON from the "--NODE_CONFIG" command line argument');
          break;
        }
      }
  
      if (commandLineNodeConfig === undefined) {
        commandLineNodeConfig = null;
      }
    }
  
    return commandLineNodeConfig;
  }
docs: Build the NODE_CONFIG object by merging the NODE_CONFIG environment variable
  and the --NODE_CONFIG command line argument.