mis (was: For review: Tagging text with no language)

[Frank Ellermann]

John Cowan wrote:

> Even though the registry doesn't contain semantics, the subtags
> there inherit their semantics from the corresponding ISO codes.

Your "mis" explanation sounded interesting enough to deserve a
comment in the registry, something along the line of "whatever
you think 'mis' is, it's most likely wrong".

Frank