[Dovecot] log_path - expansion possible?

Does (or can) the ability to use expansion variables in Dovecot's log_path exist?

ie:

log_path = /var/log/dovecot/dovecot-%Y%m%d

-- Robert Blayzor INOC, LLC rblayzor@inoc.net http://www.inoc.net/~rblayzor/