Rails6 removed namespaced_file_path

[Kadu Diógenes]

This PR removed namespaced_file_path from Rails6: rails/rails#27353

The jubilder controller template still uses this method: https://github.com/rails/jbuilder/blob/master/lib/generators/rails/templates/controller.rb#L2

I replaced this method by namespaced_path and all tests keep green.

Is there anything against this change?

[Kadu Diógenes]

I also created a PR #471

[Olle Jonsson]

This is fixed in #471 - thank you for taking the time to describe and repair this!