NSSWITCH errors in /var/log/cron

[Brandon Fosdick]

I have several machines running 6-STABLE that are showing the error listed below in /var/log/cron every few minutes. Google didn't turn up much of relevance, other than the fact that this might be related to disabling NIS. And, in fast, I have NO_NIS=true in /etc/make.conf on every single box. 

Is this a bug or a feature? Is it harmful?

The error messages are...

Feb 11 16:25:00 poseidon /usr/sbin/cron[95789]: (root) CMD (/usr/libexec/atrun)
Feb 11 16:25:00 poseidon cron[95789]: NSSWITCH(nss_method_lookup): nis, group_compat, setgrent, not found
Feb 11 16:25:00 poseidon cron[95789]: NSSWITCH(nss_method_lookup): nis, group_compat, endgrent, not found
Feb 11 16:25:00 poseidon cron[95789]: NSSWITCH(nss_method_lookup): nis, passwd_compat, endpwent, not found