Title: Moving a tail recursive function between modules
Goal: accept
Parameters: [{file,"recfun2.erl"},{funlist,[{fac,2}]},{name,"recfun2t"}].
Documentation: The helper function of the tail recursive variable of the factoral fuction is moved to another module. The function has to be exported in its new place so that it could be called from its original place. It is referred to by a qualified name in the original module.  
