Remove clause 3 and 4 from TNF licenses

put TNF 4-clause license.
authors - if you are okay with more relaxed license terms, or the regression
test code was derived from others, pls change them.

Boilerplate.

rcsid, WARNS, don't give \r to stdio ops

Import of TestFLoat-2a from UCB/John R. Hauser. Source already
reorged but unmodified. (I think src/dist rocks, but this pkg
is unlikely to ever get a vendor branch rev; this seemed best.)
It has a B

Import of TestFLoat-2a from UCB/John R. Hauser. Source already
reorged but unmodified. (I think src/dist rocks, but this pkg
is unlikely to ever get a vendor branch rev; this seemed best.)
It has a BSD-like license, and in any case the same license as
libc/softfloat and libc/arch/arm32/fplib.

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