[Dovecot] Defunct processes w/ v1.2.1

[Chris O'Regan]

> This should fix it: http://hg.dovecot.org/dovecot-1.2/rev/a878a0897eb9
> 
> Hopefully sigprocmask() is implemented widely enough nowadays.

I've confirmed that Nessus was triggering the problem. After applying
the patch, Dovecot survived a Nessus scan! Many, many thanks for fixing
this so quickly!


-- 
Chris O'Regan <chris at encs.concordia.ca>
Senior Unix Systems Administrator, Academic IT Services
Faculty of Engineering and Computer Science
Concordia University, Montreal, Canada