Subsubtagging sl-rozaj

[John Cowan]

John Clews scripsit:

> (a) sl-rozaj in various specific countries, which does not need the
> subtags specifyinng separately (just apply the ISO 3166 codes as
> specified in RFC 3066), or

Actually, that's not true.  RFC 3066 permits tags of the form xx-yy
or xxx-yy, where xx(x) is an ISO 639 tag and yy is an ISO 3166 country code,
to be used without registration, but this is not applicable to tags
*created* by registration: sl-rozaj-yy (where yy is a country code)
still needs to be registered separately.

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