bin/express-cli.js
function warning (message) {
  console.error()
  message.split('\n').forEach(function (line) {
    console.error('  warning: %s', line)
  })
  console.error()
}
function warning (message) {
  console.error()
  message.split('\n').forEach(function (line) {
    console.error('  warning: %s', line)
  })
  console.error()
}
Display a warning similar to how errors are displayed by commander.

@param {String} message