anchor.diff:  
   t_sendfile_recvafter(Config) ->
       Filename = proplists:get_value(small_file, Config),
  -    SendfileOpts = proplists:get_value(sendfile_opts, Config),
  +    SendfileOpts = proplists:get_value(sendfile_opts, Config, []),
   
       Send = fun(Sock) ->
   		   {Size, Data} = sendfile_file_info(Filename),
  
positive.code: 
  t_sendfile_sendduring(Config) ->
      Filename = proplists:get_value(big_file, Config),
      SendfileOpts = proplists:get_value(sendfile_opts, Config),
  
      Send = fun(Sock) ->
  		   {ok, #file_info{size = Size}} =
  
negative.code: 
  t_sendfile_closeduring(Config) ->
      Filename = proplists:get_value(big_file, Config),
      SendfileOpts = proplists:get_value(sendfile_opts, Config, []),
  
      Send = fun(Sock,SFServPid) ->
  		   spawn_link(fun() ->
  