Forgive me, I don't know how that second dot got in there. The example should
read:
=management:owens:500:500:/home/owens:::
<more entries>
=info:owensg:639:639:/home/owensg:::
=webmaster:owensg:639:639:/home/owensg:::
.. <ONE SINGLE SOLITARY DOT ON THE LAST LINE OF /var/qmail/users/assign >