lib-storage: When autocreating a namespace, don't fill out location setting unless necessary. This fixes running dsync when there are no namespaces defined.
lib-storage: When autocreating a namespace, don't fill out location setting unless necessary.
This fixes running dsync when there are no namespaces defined.

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