Fix for bayes rebuild bug on Solaris

[Raymond Dijkxhoorn]

Hi!

>    I applied the patch (had to do it by hand, an extra space in
> there on the second chunk), uncommented bayes_auto_expire in
> spam.assassin.prefs.conf, restarted.  No apparent problems.
>
> I just noticed the "autolearn=spam" note in mails tagged as spam
> by SA.  No mention of this in the docs.  What is this about?

Most likely bayes autolearning ? :)

Bye,
Raymond.