Add an entropy monitoring script for NetBSD.  This script needs to run
as root, so you need a ${SYSCONFDIR}/munin/plugin-conf.d/entropy file
with

[entropy]
  user root

as contents to get any values.  And... at the same time, I notice that
the postfix_mailqueue script also needs a postfix plugin-conf.d file with

[postfix_mailqueue]
  user postfix

as contents to get any values.

Bump PKGREVISION.

(he)