pkg_info question

[Louis LeBlanc]

Hey folks.  I'm trying to make a cruft killing run through my
installed packages.

What would make this a lot easier is if I could easily get a list of
packages that are installed that are NOT required by other packages.

I know that `pkg_info -aR` will give me all packages along with those
that require it.   Anyone know how best to get a list of packages
without dependant packages installed?

TIA

Lou
-- 
Louis LeBlanc               FreeBSD at keyslapper.org
Fully Funded Hobbyist, KeySlapper Extrordinaire :)
http://www.keyslapper.org                     Ô¿Ô¬

Eagleson's Law:
  Any code of your own that you haven't looked at for six or more
  months, might as well have been written by someone else.  (Eagleson
  is an optimist, the real number is more like three weeks.)