Missing (or extra) attribute on <searchtitle>

[Robert D Anderson <robander@us.ibm.com>]

The specification topic for the searchtitle element says that it has
@outputclass (see the last row in the attribute table):
http://docs.oasis-open.org/dita/v1.2/os/spec/langref/searchtitle.html

The DTD and XSD implementations have never had it. In this case, since the
attribute was never implemented and nobody has noticed, we would be safe to
"fix" it by either adding the attribute or by removing it from the spec. I
don't have a preference - it doesn't hurt to have there, but this element
is intended to hold things that shows up in search results, so adding a
presentation class is not really relevant (probably why it was never
noticed).

Robert D Anderson
IBM Authoring Tools Development
Chief Architect, DITA Open Toolkit (http://dita-ot.sourceforge.net/)