b958f4853c
handling of "." character case in makefs ISO level 1 and 2 filename conversion. Filed as NetBSD PR #45285 http://gnats.netbsd.org/cgi-bin/query-pr-single.pl?number=45285 Reviewed by: Christos Zoulas <christos@netbsd.org> Approved by: re (kib) MFC after: 3 days