Test iterated variable instead of a temporary variable from the previous code block (not 'high_next' but 'low'). While here, change the KASSERT to a KDASSERT.
Test iterated variable instead of a temporary variable from the previous
code block (not 'high_next' but 'low').
While here, change the KASSERT to a KDASSERT.

Pointed out by Amit Kulkarni.

ok thib@, miod@

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