Rails generator should humanize enum key for default I18n value

[masterT]

rails generate enumerate_it:enum foo_type bar_baz
      create  config/locales/foo_type.yml
      create  app/enumerations/foo_type.rb

# config/locales/foo_type.yml
en:
  enumerations:
    foo_type:
      bar_baz: 'Bar_baz'

I would expect the value for bar_baz to be humanize: 'Bar baz' instead of 'Bar_baz'.

"bar_baz".humanize
# => "Bar baz"