anchor.diff:        nick = mkOption {
           default = "znc-user";
           example = "john";
  -        type = types.string;
  +        type = types.str;
           description = ''
             The IRC nick to use when generating the `znc.conf` file.
           '';
  
positive.code:             AllowWeb = true
              IPv4 = true
              IPv6 = false
              Port = ${if confOpts.useSSL then "+" else ""}${confOpts.port}
              SSL = ${if confOpts.useSSL then "true" else "false"}
      </Listener>
      
  
negative.code:       passBlock = mkOption {
          default = defaultPassBlock;
          example = "Must be the block generated by the `znc --makepass` command.";
          type = types.str;
          description = ''
            The pass block to use when generating the `znc.conf` file.
            This is the password used by the user logging into the ZNC web admin.
  