RAR 2.0 support

[raummusik]

Good point , also forgot a password from several 2.x archives initially generated 20 years ago - wondered about the extracted 16x0 salt .

another discussion of the same behaviour if someone else runs into this :
https://hashcat.net/forum/thread-6635.html
and there we go : https://github.com/openwall/john/issues/5271

Regards
ben