Dovecot port requires mention in UPDATING

[Wesley Shields]

On Sat, Aug 15, 2009 at 02:01:27PM +0200, Oliver Heesakkers wrote:
> The configuration file of dovecot 1.1 will most likely not work for Dovecot 
> 1.2
> 
> Shouldn't this be mentioned in UPDATING?
> 
> See: http://wiki.dovecot.org/Upgrading/1.2

Yes, I will get something in there now. Sorry for the noise but this was
not mentioned in the PR.

-- WXS