RabbitMQ has moved to a much tighter cycle of support, now that the
Erlang OTP team has also made clear their support policy is penultimate
+ current release only.
Now we have OTP24 in ports let's move to that because JIT.
- [ ] address PATH leakage reported via BZ
- [ ] track down why setting HOME no longer works, and /var/lib/rabbitmq linuxism sneaks in