docs: function rethrow(err, fp, str, re) {
    var lines = str.split('\n');
    var len = lines.length, i = 0;
    var res = '';
  
    while (len--) {
      var line = lines[i++];
      if (re.test(line)) {
        error(err, fp, i, str);
        break;
      }
    }
  }