I note that section 1.5 of the documentation contains this:

On the "origin" for each replicated table, an additional trigger is added which runs the stored procedure schemadoclogtrigger( ).

Note that there is no dot between "schemadoc" and "logtrigger".

The cause of that is in schemadoc.xml:

<section id="function.logtrigger" xreflabel="schemadoclogtrigger(  )">

I see that the template in postgresql_autodoc 1.30 contains the dot, so maybe it would suffice to regenerate that file with an up-to-date version of postgresql_autodoc.