sievec prints an error if no dovecot running with mail_plugins = stats

[Stephan Bosch]

Op 12/06/2018 om 19:28 schreef SATOH Fumiyasu:
> Dovecot 2.2.36 + Pigeonhole 0.4.24
>
> Is this an intended behavior?
>
> ```
> # service dovecot status
> dovecot is stopped
> # doveconf mail_plugins
> mail_plugins =  stats
> # ls foo.*
> foo.sieve
> # sievec foo.sieve
> sievec(root): Error: stats: open(/var/run/dovecot/stats-mail) failed: No such device or address
> # echo $?
> 0
> # ls foo.*
> foo.sieve  foo.svbin
> ```

Just a small nuisance I guess. Should be OK for v2.3.x

Regards,

Stephan.