docs: function optionsToShellArgs(options) {
      var result = [];
  
      for (var key in options) {
          var value = options[key];
  
          if (value === null || value === undefined || value === false) {
              continue;
          }
  
          if (is.bool(value)) {
              result.push(key);
          } else {
              result.push(key + '=' + escapeShellArg(value));
          }
      }
  
      return result.join(' ');
  }