A few changes that reduce the diffs to the Linux code.  Mostly style issues, but in one case change the errno value that gets returened to match Linux.
A few changes that reduce the diffs to the Linux code.  Mostly style issues,
but in one case change the errno value that gets returened to match Linux.

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