rename dnsmasq macs/ to macs-subaru/

Can the /etc/dnsmasq.d/macs directory be renamed to macs-subaru/, and the dnsmasq-site.subaru link to that be changed?

This is just to make Subaru structurally identical to LAM and IDG, and to make it clear when changes affect other sites. In general they should not, but both fmadec and I have been anxious about causing trouble recently.