anchor.diff:  -record(state, {
   	  fn,		%% string(), filename
   	  file_mtime,	%% integer(), mtime of fn
  -	  last_fail,	%% integer(), timestamp when we last warned about failure to interpret fn
  +	  last_fail,	%% integer() | undefined, timestamp when we last warned about failure to interpret fn
   	  userlist,	%% list() of user record()
   	  addresslist	%% list() of address record()
   	 }).
  
positive.code:     {ok, ["test1"], []} = verify_consistency2(VC_U3, VC_A3),
  
  
      
      ok.
  
negative.code: %%%           - maybe we should.
  %%%-------------------------------------------------------------------
  -module(sipuserdb_file_backend).
  -compile(export_all).
  
  -behaviour(gen_server).
  
  