lib/args.js
function (flagKey) {
  var flags = _.isUndefined(flagKey) ? FLAGS.general : FLAGS[flagKey];

  return !flags ? "" : _.map(flags, function (val, key) {
    return chalk.cyan("--" + key) + ": " + val.desc;
  }).join("\n\n  ");
}
function (flagKey) {
  var flags = _.isUndefined(flagKey) ? FLAGS.general : FLAGS[flagKey];

  return !flags ? "" : _.map(flags, function (val, key) {
    return chalk.cyan("--" + key) + ": " + val.desc;
  }).join("\n\n  ");
}
function ( flagKey ) { var flags = _ . isUndefined ( flagKey ) ? FLAGS . general : FLAGS [ flagKey ] ; return ! flags ? "" : _ . map ( flags , function ( val , key ) { return chalk . cyan ( "--" + key ) + ": " + val . desc ; } ) . join ( "\n\n  " ) ; }
Retrieve help.

@param   {String} flagKey  Key of flags to return or `undefined` for general
@returns {String}          Help string
Retrieve help .