title: Setting environment variables for multiple apps at the same time in Heroku?
body: <p>I'd like to set env. vars for multiple apps at the same time. Something like this:</p>
  
  <p><code>heroku config:set VAR='whatever' --app heroku-app-1, heroku-app-2</code> …or…</p>
  
  <p><code>heroku config:set VAR='whatever' --app heroku-app-1 --app heroku-app-2</code>?</p>
  
  <p>Is this possible?</p>
  
  <p>Cheers!</p>