Always separate config blocks with a CR

Author: dhh

railties/lib/rails/generators/rails/app/templates/config/environments/production.rb.tt

@@ -124,6 +124,7 @@ Rails.application.configure do
   #   "example.com",     # Allow requests from example.com
   #   /.*\.example\.com/ # Allow requests from subdomains like `www.example.com`
   # ]
+  #
   # Skip DNS rebinding protection for the default health check endpoint.
   # config.host_authorization = { exclude: ->(request) { request.path == "/up" } }
 end