anchor.diff:  t_sendfile_offset(Config) ->
       Filename = proplists:get_value(small_file, Config),
       FileOpts = proplists:get_value(file_opts, Config, []),
  -    SendfileOpts = proplists:get_value(sendfile_opts, Config),
  +    SendfileOpts = proplists:get_value(sendfile_opts, Config, []),
   
       Send = fun(Sock) ->
   		   {_Size, <<_:5/binary,Data:3/binary,_/binary>> = AllData} =
  
positive.code: 
  t_sendfile_recvafter(Config) ->
      Filename = proplists:get_value(small_file, Config),
      SendfileOpts = proplists:get_value(sendfile_opts, Config),
  
      Send = fun(Sock) ->
  		   {Size, Data} = sendfile_file_info(Filename),
  
negative.code: t_sendfile_many_small(Config) when is_list(Config) ->
      Filename = proplists:get_value(small_file, Config),
      FileOpts = proplists:get_value(file_opts, Config, []),
      SendfileOpts = proplists:get_value(sendfile_opts, Config, []),
  
      error_logger:add_report_handler(?MODULE,[self()]),
  
  