[NNTP] Misc changes

[Clive D.W. Feather]

Russ Allbery said:
>> (2) Make POST a separate capability. I think this was agreed.
> Yes.

Done.

> The other item that was raised was adding a capability for NEWNEWS.  I
> agree with the feeling that servers should really provide it, but given
> the number that choose not to, maybe we shouldn't be dictating policy in
> the standard to quite that degree.  It does have the problem that a
> syntactically proper NEWNEWS command can take a huge amount of resources
> without any realistic way of reducing those resources:
> 
>     NEWNEWS * 19700101 000000 GMT
> 
> something that I don't believe is shared by any other mandatory command.

I'm not sure that's really unique; after all, a HDR or OVER on a large
group can also produce huge amounts of output.

I don't like the idea of making NEWNEWS optional, but I'll leave it to you
to make the final call.

-- 
Clive D.W. Feather  | Work:  <clive at demon.net>   | Tel:    +44 20 8495 6138
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