# File lib/active_ldap/adapter/ldap.rb, line 91
      def to_ldif(dn, attributes)
        ldif = LDAP::LDIF.to_ldif("dn", [dn.dup])
        attributes.sort_by do |key, value|
          key
        end.each do |key, values|
          ldif << LDAP::LDIF.to_ldif(key, values)
        end
        ldif
      end