rails generate rspec:install generates a slim spec_helper.rb and a more rails conventional rails_spec_helper.rb

[alindeman]

See https://github.com/rspec/rspec-core/pull/1219/files for discussion

[myronmarston]

One subtlety to consider is this line in the generated spec_helper.rb:

# This file was generated by the `rspec --init` command.

...which will not be true when using the rspec-rails generator. Might be worth gsubbing that out, or changing ProjectInitializer in rspec-core to accept an injected cli_command arg or something.

[cupakromer]

Closing this in favor of #990