Proposed minor spec changes, for comment.

[solderpunk]

On Mon, May 18, 2020 at 09:45:35PM +0000, jan6 at tilde.ninja wrote:
 
> I'm not sure I see the point in the encoding part, though...
> practically everything can be converted to utf8 rather easily, making it a bit useless to
> specify...

That's been in the spec since early days, the only proposed change here
is the language part.  The charset parameter is explicitly optional and
the default in its absence is UTF-8, which clients MUST support.
Support for additional encodings in clients is optional, but they should
fail gracefully in the face of things they can't handle.

I expect 90%+ of content to be UTF-8 and for servers not to bother
specifying this as it's the explicit default, but it seemed unwise to be
completely incapable of handing anything else.

Cheers,
Solderpunk