[issue2141] loader and/or documentation broken

["Thomas Nikolajsen \(via DragonFly issue tracker\)" <sinknull@xxxxxxxxxxxxxxxxxxxxx>]

Thomas Nikolajsen <thomas.nikolajsen@mail.dk> added the comment:

ehci_load=
on loader prompt works.

The problem is local vs kernel env variables:
set / unset works on kernel env variables only;
this can have the effect that a variable has an instance
both as local and kernel env variable, but with different value.

IMO set / unset should also do operation on local variable.
Any objections?

Local variables was introduced by dloader, mainly to store menu stuff,
which the kernel has no use for.

I did update loader docs (man & help file) after dloader introduction,
so I think it is in a rather good shape :)

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