[Dovecot] change sender name in Sieve

[Jakob Grießmann]

Hi Seth,

> Or just rebuild the Debian packages yourself with the patch applied.

thanks a lot, will look into it. I have quite a few systems to
maintain, so I think best would be to set-up my own repository, as
your patching instructions otherwise would have to be done by hand on
all machines, which is quite time consuming. :-)

Merry Christmas,
Jakob