[Dovecot] trivial documentation errata (1.2.7)

[Stephan Bosch]

Frank Cusack wrote:

> The managesieve comments are stale as well, with a reference to
> sieve_storage still in there.  Or do they refer to the CMU sieve
> implementation?  Anyway it is confusing.
> 
Fixed in new ManageSieve patch for Dovecot v1.2.8

Regards,

Stephan.