[spec] Regarding the proposal to remove status code 11

[Sandra Snan]

Luke wrote:
> So no I won't be attempting to obfuscate URIs in GemiNaut

That's fine.♥

It's optional. That's why the status codes are two digits: the first is
mandatory and the second is for snazzy extra features. If either client
or server doesn't support that LSD, then it doesn't happen. It's just
there in case both client and servers support it.