std.builtin.panic(uefi): usability improvements

[fifty-six]

Inspired by the review in #16094. cc @wooster0?

[fifty-six]

Are there any blockers for this - or did it just fall into backlog? Not a huge deal either way, but it's been a bit so I wanted to check.

[fifty-six]

Oh whoops, just me writing the wrong thing down — I'll rewrite the commit description

[fifty-six]

Fixed that - and rebased onto the current master commit

[Vexu]

Could you also give a quick reasoning as to why you want to do so? (Maybe as a comment in the code?)

[fifty-six]

Yeah sure, added.

[Vexu]

+- test-fmt
   +- zig fmt --check failure
error: /home/ci/actions-runner1/_work/zig/zig/lib/std/builtin.zig: non-conforming formatting

You need to fix the formatting.

[fifty-six]

Ah ok