Bug#2033: efax installation problems
1. The postinst script says to modify /usr/bin/fax, but it should probably
now say /etc/efax.rc instead.
2. /usr/bin/fax should probably no longer be listed in conffiles.
3. The software looks for spool files in /usr/spool/fax, but:
a. It should probably look in /var/spool/fax instead, and
b. This directory (and various subdirectories) are not created during
installation (I have no idea what mode they should have?)