[PVE-User] use existing LE account

[Randy Bush]

bennet

> have a look at the files in "/etc/pve/priv/acme". They contain all the
> information needed.

    prox.rg.net:/home/randy# ls -la /etc/pve/priv/acme/
    total 0
    drwx------ 2 root www-data 0 May 19 16:46 ./
    drwx------ 2 root www-data 0 May 19 16:46 ../

i already had that information :)

if there had been the classic directory `secret`, i would have known
where to put my account key.  but ...

randy