anchor.diff:      };
   
       networking.resolvconfOptions = lib.mkOption {
  -      type = types.lines;
  -      default = "";
  -      example = "ndots:1 rotate";
  +      type = types.listOf types.str;
  +      default = [];
  +      example = [ "ndots:1" "rotate" ];
         description = ''
           Set the options in <filename>/etc/resolv.conf</filename>.
         '';
  
positive.code:                    config.services.dnsmasq.resolveLocalQueries;
    hasLocalResolver = config.services.bind.enable || dnsmasqResolve;
  
    resolvconfOptions =
      builtins.replaceStrings ["\n"] [" "]
        (cfg.resolvconfOptions +
        (optionalString cfg.dnsSingleRequest " single-request") +
        (optionalString cfg.dnsExtensionMechanism " ends0"));
  in
  
  {
  
negative.code:               # Invalidate the nscd cache whenever resolv.conf is
                # regenerated.
                libc_restart='${pkgs.systemd}/bin/systemctl try-restart --no-block nscd.service 2> /dev/null'
              '' + optionalString (length resolvconfOptions > 0) ''
                # Options as described in resolv.conf(5)
                resolv_conf_options='${concatStringsSep " " resolvconfOptions}'
              '' + optionalString hasLocalResolver ''
                # This hosts runs a full-blown DNS resolver.
                name_servers='127.0.0.1'
  