autoconf and automake

[Steven Friedrich]

I'm having trouble with the latest advice in ports/UPDATING:

20101208:
  AFFECTS: autotools
  AUTHOR: autotools at FreeBSD.org

  Another stage in the autotools cleanup that reduces tree churn whilst
  updating components, a number of ports have now moved to non-versioned
  locations since there is now only the concept of legacy and current
  versions.

  # portmaster -o devel/autoconf devel/autoconf268
  # portmaster -o devel/automake devel/automake111
  # portmaster -o devel/libtool devel/libtool22
  # portmaster -o devel/libltdl devel/libltdl22

  substitute 'portupgrade' for 'portmaster' accordingly if that's your
  your upgrade tool of choice.

If I invoke portupgrade -o devel/autoconf devel/autoconf268
portupgrade doesn't appear to do anything:

portupgrade -o devel/autoconf devel/autoconf268            
--->  Session started at: Thu, 09 Dec 2010 13:52:08 -0500                                          
** None has been installed or upgraded.
--->  Saving the results to '/root/done'
--->  Session ended at: Thu, 09 Dec 2010 13:52:08 -0500 (consumed 00:00:00)

And pkg_info says there's still an old version of autoconf:

pkg_info|grep autoconf
autoconf-2.13.000227_6 Automatically configure source code on many Un*x 
platforms                  
autoconf-2.68       Automatically configure source code on many Un*x platforms 
autoconf-wrapper-20101119 Wrapper script for GNU autoconf


Can anyone help me?  I'm thinking that I'm trying to upgrade all ports that 
depend on autoconf-2.13.000227_6 to depend on autoconf268.
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