I just uninstalled portupgrade, and installed it from: /usr/ports/ports-mgmt/portupgrade

make install was the command used.

I ran

#pkgdb -F
#portsdb -Uu
#portversion | grep "<"

then....

#portupgrade -fa
** Port marked as IGNORE: devel/imake-6:
        "Makefile", line 63: if-less endif
** Proceeding anyway since NO_IGNORE is defined
/usr/local/lib/ruby/site_ruby/1.8/pkgversion.rb:41:in `initialize': : Not in due form: '<version>[_<revision>][,<epoch>]'. (ArgumentError)
        from /usr/local/sbin/portupgrade:638:in `new'
        from /usr/local/sbin/portupgrade:638:in `main'
        from /usr/local/sbin/portupgrade:613:in `each'
        from /usr/local/sbin/portupgrade:613:in `main'
        from /usr/local/sbin/portupgrade:588:in `catch'
        from /usr/local/sbin/portupgrade:588:in `main'
        from /usr/local/lib/ruby/1.8/optparse.rb:1303:in `call'
        from /usr/local/lib/ruby/1.8/optparse.rb:1303:in `parse_in_order'
         ... 7 levels...
        from /usr/local/lib/ruby/1.8/optparse.rb:785:in `initialize'
        from /usr/local/sbin/portupgrade:229:in `new'
        from /usr/local/sbin/portupgrade:229:in `main'
        from /usr/local/sbin/portupgrade:2173