    # File lib/rubygems/commands/pristine_command.rb, line 11
      def initialize
        super 'pristine',
              'Restores installed gems to pristine condition from files located in the gem cache',
              :version => Gem::Requirement.default

        add_option('--all',
                   'Restore all installed gems to pristine',
                   'condition') do |value, options|
          options[:all] = value
        end

        add_version_option('restore to', 'pristine condition')
      end