take review feedback, also fix LICENSE file path

Not sure what happened here, but someone added this port already, so I'm dropping this.

This has been sitting for a very long time now.

@koobs, @adamw this is ready for feedback again.

take review feedback and update to latest version

I forgot about this and looks like someone added the port in the meanwhile.

In D6117#134261, @cem wrote:

Ok. Here's another proposal:

Add a mode between INVARIANTS off and INVARIANTS on. Call it INVARIANTS_OPTIONAL (or _NETFLIX, I don't care what color it is).

• In !INVARIANTS mode, you don't have KASSERTs at all (like today).

• In INVARIANTS && INVARIANTS_OPTIONAL mode, you get the all the print-and-continue KASSERT knobs you have today. (So, same default of panicing, but optionally they can be disabled and turned into logs.)

• In INVARIANTS && !INVARIANTS_OPTIONAL mode, KASSERT always panics.

I would suggest GENERIC move from the current mode, effectively INVARIANTS_OPTIONAL, to !INVARIANTS_OPTIONAL. But if you want to ship a kernel with pass-through assertions enabled, you can still do that by enabling INVARIANTS_OPTIONAL.

Does that meet your needs well enough?

During my time at iXsystems we used this facility several times to get a log from a customer site with a number of "kasserts".

This is committed.

Maybe one day. :)

Rebase and cleanup for review

In D3934#85411, @koobs wrote:

Can attach screenshot?

She owns it, it will go away eventually.

Maybe it's not to replace it completely, maybe it serves as a great landing page that then links to the existing site?

Removing myself.