libryder/typo — comment on commit 80ca76c3802a52447330afe9f1241d3baef762c5
File: app/controllers/admin/settings_controller.rb line 38
By ook:

If I can comment, I recommand to use

Rails.root + 'db' + 'migrate'

instead if File#expand_path

The main advantage is that you get a Pathname instance, which is very convenient.
The other is to stay coherent with Rails usage.