rails/rails — pull request #13471 by schneems (2013-12-24 16:08:23+00:00)
Title: Better missing `secret_key_base` error message

Previously the error was:

```
RuntimeError: You must set secret_key_base in your app's config
```

Will now be:

```
RuntimeError: Missing `secret_key_base` for 'production' environment, set this value in `config/secrets.yml`
```