Function renamedOption

bin/express-cli.js:508–513

* Generate a callback function for commander to warn about renamed option. * * @param {String} originalName * @param {String} newName

(originalName, newName)

 */

function renamedOption (originalName, newName) {
  return function (val) {
    warning(util.format("option `%s' has been renamed to `%s'", originalName, newName))
    return val
  }
}

/**
 * Display a warning similar to how errors are displayed by commander.