code: function rightAlign(strVec) {
    var maxWidth = strVec.nChar().max();
    var padding = jd.rep(' ', maxWidth).strJoin('');
    return strVec.map(function(str) {
      return (padding + str).slice(-padding.length);
    });
  }
docs: Helper for right-aligning every element in a string vector, padding with spaces so all elements are the same width