auth: When auto-loading auth mechanisms from plugins, generate the name better.
auth: When auto-loading auth mechanisms from plugins, generate the name better.

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