code: function(str, len, padChar) {
      str = stringIt(str);
      if (str.length >= len) {
        return str;
      }
      var padStr = getPadding(padChar, len);
      return str + padStr.substr(str.length - len);
    }
docs: Pad string on right
  @param {string} str string to pad
  @param {number} len number of characters to pad to
  @param {string} padChar character to pad with
  @returns {string} padded string.
  @memberOf module:Strings