For templates' gem method, :env is deprecated, use :group instead

railties/lib/rails/generators/actions.rb

@@ -44,7 +44,7 @@ def plugin(name, options)
       #
       # ==== Example
       #
-      #   gem "rspec", :env => :test
+      #   gem "rspec", :group => :test
       #   gem "technoweenie-restful-authentication", :lib => "restful-authentication", :source => "http://gems.github.com/"
       #   gem "rails", "3.0", :git => "git://github.com/rails/rails"
       #