Re: Updating build and jail manual pages to include missing or obscure information

From: void <void_at_f-m.fm>
Date: Thu, 22 May 2025 17:05:34 UTC 
On Thu, May 22, 2025 at 07:56:38AM -0600, Warner Losh wrote:
>
>I object to removing these. I do agree we should document other methods,
>but my spidt sense is this is still in use...

I object also. `make kernel` is useful if only for that by using it,
one doesn't need to type `make buildkernel && make installkernel`.
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