DOCBOOK-APPS: Sorry (Missing a section element without a title)

Oops, please reply to docbook, not docbook-apps :(
-- 
Yann Dirson <>                 http://www.alcove.com/
Technical support manager                Responsable de l'assistance technique
Senior Free-Software Consultant          Consultant senior en Logiciels Libres
Debian developer ()                        D憝eloppeur Debian