runtime regeneration.  Not pretty, but better than triggering it
only once on bootup.  More clog -> newsyslog migration to be done
soon.

Discussed with: ad@

o Sharpen the text for permitting root login and password.
o Migration kills the default of not permitting passwords.

Must move the git mount up to test this properly.

radius.inc includes both radius_accounting.inc and radius_authentication.inc,
but lives in /usr/local/etc/inc, which makes an extra include path and the
desired code separation a bit pointless.