vendors/execa.js/parse
    function parse(command, args, options) {
      if (args && !Array.isArray(args)) {
        options = args;
        args = null;
      }
      args = args ? args.slice(0) : [];
      options = Object.assign({}, options);
      const parsed = {
        command,
        args,
        options,
        file: void 0,
        original: {
          command,
          args
        }
      };
      return options.shell ? parsed : parseNonShell(parsed);
    }