Comment 7 for bug 163194

Proposed patch; includes changes to client lanman auth and client plaintext auth as well, which protects users from being tricked into sending plaintext passwords to a rogue server, but at the cost of breaking compatibility with other Samba servers that have encrypted passwords = no set.

Investigation shows that these three changes have already been made upstream for 3.2, which further reinforces my belief that we shouldn't worry about debconf handling of this.