anchor.diff:    in concatMapStrings (getAttr "value") monitors;
   
     configFile = pkgs.runCommand "xserver.conf"
  -    { xfs = optionalString (cfg.useXFS != false)
  -        ''FontPath "${toString cfg.useXFS}"'';
  +    { fontpath = optionalString (cfg.fontPath != null)
  +        ''FontPath "${cfg.fontPath}"'';
         inherit (cfg) config;
         preferLocalBuild = true;
       }
         ''
           echo 'Section "Files"' >> $out
  -        echo $xfs >> $out
  +        echo $fontpath >> $out
   
           for i in ${toString fontsForXServer}; do
             if test "''${i:0:''${#NIX_STORE}}" == "$NIX_STORE"; then
  
positive.code:       ./desktop-managers/default.nix
        (mkRemovedOptionModule [ "services" "xserver" "startGnuPGAgent" ]
          "See the 16.09 release notes for more information.")
      ];
  
  
  
negative.code:         description = "Default colour depth.";
        };
  
        fontPath = mkOption {
          type = types.nullOr types.str;
          default = null;
          example = "unix/:7100";
          description = ''
            Set the X server FontPath. Defaults to null, which
            means the compiled in defaults will be used. See
            man xorg.conf for details.
          '';
        };
  
        tty = mkOption {
  