Remove distribution sets

[Gregory Orange]

On 16/09/14 10:02, Gregory Orange wrote:
> Manual intervention:
> lots of prompting with "these files don't match, what do I do?" and
> frustratingly, an editor session opens up to compare - in the vast
> majority (all but a handful) of cases the differences are just the
> header line which doesn't matter to me.

Ah, I can ignore the old versions by making MergeChanges in 
/etc/freebsd-update.conf contain very little, if anything.

This greatly reduces the manual labour!

That plus making Components in freebsd-update.conf only contain 
kernel/generic and world/base and I reckon that'll about do it.