bin/express-cli.js
function renamedOption (originalName, newName) {
  return function (val) {
    warning(util.format("option `%s' has been renamed to `%s'", originalName, newName))
    return val
  }
}
function renamedOption (originalName, newName) {
  return function (val) {
    warning(util.format("option `%s' has been renamed to `%s'", originalName, newName))
    return val
  }
}
Generate a callback function for commander to warn about renamed option.

@param {String} originalName
@param {String} newName