ports/157669: Fix port: databases/postgresql90-server should use USERS

[edwin at FreeBSD.org]

Synopsis: Fix port: databases/postgresql90-server should use USERS

Responsible-Changed-From-To: freebsd-ports-bugs->girgen
Responsible-Changed-By: edwin
Responsible-Changed-When: Mon Jun 6 19:10:40 UTC 2011
Responsible-Changed-Why: 
Over to maintainer (via the GNATS Auto Assign Tool)

http://www.freebsd.org/cgi/query-pr.cgi?pr=157669