Odd sysctl -a output on armv7 alpha1

Ordinarily one can read cpu temperature by using
# sysctl -a | grep -i emper
hw.cpufreq.temperature: 65209
dev.cpu.0.temperature: 64.6C

This example is on a Pi4 running -current.

On a fresh install of armv7 alpha1 (pi2, v1.1) I get
# sysctl -a | grep -i emper
#

There are also a few stray brackets:
sleeping_thread_stacks = {
},

Perhaps not wrong, but certainly unexpected.

This is on the fresh install, so maybe it'll
clear up after a sucessful build/install cycle.

Thanks for reading,

bob prohaska