Also, return EAFNOSUPPORT instead of ENOBUFS. Both this and the previous commit where noted by sam@errno.com
Also, return EAFNOSUPPORT instead of ENOBUFS. Both this and the
previous commit where noted by sam@errno.com

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