Add explicit paragraph to copyleft conditions, on the licensing of
the entire covered work you distribute. This is intended to express
a similar requirement as GPLv2 section 2, penultimate and
antepenultimate paragraphs. I think it's disputable whether it's
redundant with no-restrictions clause.
I think a more important question is if it's logically sound and
conveys enough of GPLv2 section 2: the condition is intended to
express the same idea of a larger work it applies to, without
explicitly requiring all covered code under all conditions of
copyleft-next. It requires it under all conditions which make a
license free.

Signed-off-by: enyst <engel.nyst@gmail.com>