FOP warnings about id attributes in title tags

Over on our shiny new PDF builder at
<https://buildfarm.postgresql.org/cgi-bin/show_stage_log.pl?nm=alabio&dt=2019-02-18%2012%3A32%3A08&stg=make-pdfs> 
FOP is complaining about a bunch of unresolved ID references.

It appears that these are due to title elements having id tags. At
<http://www.sagehill.net/docbookxsl/CrossRefs.html> is says:

    When adding an |id| or |xml:id| attribute, put it on the element
    itself, not the |title|.

So maybe we need to fix those up?


cheers


andrew


-- 
Andrew Dunstan                https://www.2ndQuadrant.com
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services