# File lib/bundler/rubygems_ext.rb, line 80
    def to_gemfile(path = nil)
      gemfile = "source 'https://rubygems.org'\n"
      gemfile << dependencies_to_gemfile(nondevelopment_dependencies)
      unless development_dependencies.empty?
        gemfile << "\n"
        gemfile << dependencies_to_gemfile(development_dependencies, :development)
      end
      gemfile
    end