spring_gemfile_entry

# File railties/lib/rails/generators/app_base.rb, line 305
      def spring_gemfile_entry
        return [] unless spring_install?
        comment = 'Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring'
        GemfileEntry.new('spring', nil, comment, group: :development)
      end