# File lib/crack/json.rb, line 99
      def self.format_dates(output, date_starts, date_ends)
        if YAML.constants.include?('Syck')
          (date_starts + date_ends).each { |i| output[i-1] = ' ' }
        else
          date_starts.each { |i| output[i-2] = '!!timestamp ' }
        end
      end