anchor.diff:  
   %% turn the proplist inta a #cnf{}
   make_cnf(Trc,Props) ->
  -  make_cnf(Props,#cnf{trc=Trc},record_info(fields,cnf)).
  +  make_cnf(proplists:unfold(Props),#cnf{trc=Trc},record_info(fields,cnf)).
   
   make_cnf([],Cnf,_) -> Cnf;
   make_cnf([{Tag,Val}|Props],Cnf,Tags) ->
  
positive.code:              , proc         = all          % list of procs (or 'all')
               , target       = node()       % target node
               , cookie       = ''           % target node cookie
               , buffered     = no           % output buffering
               , arity        = false        % arity instead of args
               , print_calls  = true         % print calls
               , print_file   = ""           % file to print to (standard_io)
  
negative.code: chk_time(Time) when is_integer(Time) -> Time;
  chk_time(X) -> exit({bad_time,X}).
  
  chk_buffered(true)  -> term_buffer;
  chk_buffered(false) -> term_stream.
  
  chk_proc(Pid) when is_pid(Pid) -> Pid;
  chk_proc(Atom) when is_atom(Atom)-> Atom;
  