lib-auth: auth_master_user_list_*() shouldn't create ioloop if it already exists.
lib-auth: auth_master_user_list_*() shouldn't create ioloop if it already exists.

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