anchor.diff:            line of the file should contain two fields, separated by whitespace.
             The first field is the mime type, the second is a file extension.
             For example:
  -          video/x-ms-wmx                    wmx
  +<programlisting>
  +video/x-ms-wmx  wmx
  +</programlisting>
             If the file is not found, some simple defaults will be used.
           '';
         };
  
positive.code:       plugins = mkOption {
          type = types.path;
          description = ''
            Specifies a list of plugins to load.  Plugins may be specified either
            by their path or by their module name.  If the plugin name starts
            with Gitit.Plugin., gitit will assume that the plugin is an installed
            module and will not try to find a source file.
            Examples:
            plugins: plugins/DotPlugin.hs, CapitalizeEmphasisPlugin.hs
            plugins: plugins/DotPlugin
            plugins: Gitit.Plugin.InterwikiLinks
          '';
        };
  
  
negative.code:         type = types.bool;
          default = false;
          description = ''
            If true, PDF will appear in export options. PDF will be created using
            pdflatex, which must be installed and in the path. Note that PDF
            exports create significant additional server load.
          '';
  