def dump_pretty
      content = []

      last_type = "SOA"
      sorted_records.each do |rr|
        content << '' if last_type != rr.type
        content << rr.dump
        last_type = rr.type
      end

      content.join("\n") << "\n"
    end
def dump_pretty
      content = []

      last_type = "SOA"
      sorted_records.each do |rr|
        content << '' if last_type != rr.type
        content << rr.dump
        last_type = rr.type
      end

      content.join("\n") << "\n"
    end
Generates pretty output of the zone and its records.

 @api public