kvm_getloadavg(3) on FreeBSD

The text c5cdd5cc9484, as FreeBSD 2.1.7.1-RELEASE, FreeBSD 2.1.7-RELEASE, FreeBSD 2.1.5-RELEASE, FreeBSD 2.0.5-RELEASE shipped it.

get error message on kvm descriptor

kvm_getloadavg(3) on FreeBSD now