to free the suffix. I think, it is a very strange idea. (Or, maybe, it is a
POSIX requirement?) And it is done incorrectly. Apparently, it even don't
update the list of known suffixes (but it is an other bug).
PR: 4254, 4692, 4783
Reviewed by: phk
Submitted by: Dmitrij Tejblum <dima@tejblum.dnttm.rssi.ru>