Failed cleanup

[Joshua Root]

On 2015-1-11 08:50 , René J.V. Bertin wrote:
>>> MacPorts does not currently have any background processes; adding one would be a major change.
>>
>> This would also only be useful if there were something else MacPorts could be doing at the same time in the foreground. I think it would be confusing to add some sort of vacuum process that continued running after the main port(1) process exited.
> 
> I don't agree. From what I understand, this process is done after each clean and thus also repeatedly during a multi-port upgrade.

You understand wrong. Vacuum happens once at shutdown iff any ports have
been uninstalled.

- Josh