portupgrade-20040701_1 doesn't like upgrading using packages

[Don Lewis]

I just built a bunch of packages on one machine running 5.2-CURRENT, and
when I tried to upgrade the ports installed on another machine by using
	portupgrade -a
portupgrade coughed up a hairball.  The packages seem to be OK, since I
can pkg_add them.  Portupgrade fails the same way on both machines.


#portupgrade -fP portupgrade-20040701_1
--->  Checking for the latest package of 'sysutils/portupgrade'
** Listing the failed packages (*:skipped / !:failed)
        ! sysutils/portupgrade (portupgrade-20040701_1) (undefined method `>' for #<Array:0x85221d8>)
--->  Packages processed: 0 done, 0 ignored, 0 skipped and 1 failed