RFE: Support /etc/ntp.d
It'd be really nice if ntpd supported an /etc/ntp.d or similar or include files. Then, on Debian, I could ship a separate file in the ntpsec-ntpviz package, so one would only get ntpd logging if ntpviz was installed. Embedded devices shouldn't need to write ntpd logs (wasting flash rewrite) that'll never be read.
Issue title later edited to reflect the fact that includes were already supported, though poorly documented, at the time this issue was filed.