p5-XML-SAX and portupgrade

[n dhert]

There is an update of p5-XML-SAX in the ports, /usr/ports/UPDATING says:

20120512:
  AFFECTS: users of textproc/p5-XML-SAX
  AUTHOR: crees at FreeBSD.org
  p5-XML-SAX (X-S) was split into p5-XML-SAX-Base (X-S-B) and p5-XML-SAX for
  version 0.99.  Since X-S-B now installs some files formerly installed by
X-S
  the package for X-S must be deinstalled before updating X-S.
  # pkg_delete -fx p5-XML-SAX
  # portmaster textproc/p5-XML-SAX
  (users of pkgng can substitute pkg_delete with pkg delete)
But what is the instruction for users of  portupgrade ?