plugins/fts: expunge-log - pull mailbox finding/creating into a helper There will be more clients than just this one.
plugins/fts: expunge-log - pull mailbox finding/creating into a helper
There will be more clients than just this one.

Signed-off-by: Phil Carmody <e888d2bd6f13f82caa51a37c03d034c76f661ba3@dovecot.fi>

LTD-Beget/dovecot,LTD-Beget/dovecot,LTD-Beget/dovecot,LTD-Beget/dovecot,LTD-Beget/dovecot