latest exim and fai 2.3.1

[Niall Young]

The latest version of exim seems to be checking if the mail spool is empty,
or is now leaving a welcome message or something:

Removing exim ...
dpkg - warning: while removing exim, directory `/etc/ppp/ip-up.d' not empty so not removed.
dpkg - warning: while removing exim, directory `/etc/ppp' not empty so not removed.
dpkg - warning: while removing exim, directory `/etc/exim' not empty so not removed.
Purging configuration files for exim ...
There are mails in the exim spool directory which have not yet
been delivered. You can keep them in case you decide to re-install
exim at a later date, or you can choose to remove them.
Should they be removed (Y/n)?

which is halting installation.  task_instsoft pipes yes '' to
install_packages - is this passed right through to apt-get or should
the yes instead take place in %command?  Is this fixed in more recent
vesions of fai?

Niall Young                                    Chime Communications Pty Ltd
niall at chime.net.au                            Level 6, 263 Adelaide Terrace
Ph: (+61) 08 9213 1330 / 0408 192 797         Perth, Western Australia 6000

    "Happy Quarter-of-a-century to my big sis Kylie, who turns ?? today"
                                        -- Lauren Metropolis, May 2003