sysctlbyname(machdep.hlt_logical_cpus)?

[Paul Beard]

This just made itself known: 

service nginx start
Performing sanity check on nginx configuration:
nginx: [alert] sysctlbyname(machdep.hlt_logical_cpus) failed
Starting nginx.
nginx: [alert] sysctlbyname(machdep.hlt_logical_cpus) failed
/usr/local/etc/rc.d/nginx: WARNING: failed to start nginx

I don’t see how to disable it. I was pointed to loader.conf but that didn’t seem to do it.