Description:
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In the 'include' control structure manual page, while explain 'include construct 
will emit a warning if it cannot find a file; this is different behavior from 
require, which will emit a fatal error', there are empty link attached to 
'warning' and 'fatal error'.  Those links should be linked into E_WARNING and 
E_ERROR predefined constants of Error Handling funcitons.

Looked into xml files, I guess the linkend doesn't extend into table row level 
even a row was specified an xml id.

This could affect any page trying to link into a table row.