the size of the rendered release notes. By default, any element with
a role="historic" attribute won't get rendered in the output unless
the INCLUDE_HISTORIC Makefile variable is defined.
notes document. Basically, I've moved the contents of common/
{artheader,intro,upgrading}.sgml into common/new.sgml, removed duplicate
$FreeBSD$ markers, and adjusted the various references to these files.
No other whitespace or content changes.
This change will make it easier to do some minor restructuring.
MFC after: 1 day