Do not manually decrement rt's refcounter in arplookup() and let the callers rtfree(9) it.
Do not manually decrement rt's refcounter in arplookup() and let the
callers rtfree(9) it.

ok bluhm@

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars