From: Warner Losh <imp(a)bsdimp.com>
There's no wupus source before V7.
If you look at Clem's original message:
> From: Clem Cole <clemc(a)ccc.com>
> Date: Mon, 6 Jan 2020 16:08:50 -0500
> You got my curiosity up and found the V5 and V6
(the one Will was replying to), Clem's talking about the source to crt0.s,