lib: hash-format - fix leak on _init() failure path If any of the analysis/parse helpers return failure, then the whole pool will leak.
lib: hash-format - fix leak on _init() failure path
If any of the analysis/parse helpers return failure, then the whole pool
will leak.

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

jwm/dovecot-notmuch,jwm/dovecot-notmuch,jwm/dovecot-notmuch,jwm/dovecot-notmuch,jwm/dovecot-notmuch