Log Message:-----------Don't show error message if there is not a single user that has a certain user right when the installer checks.
Don't check for PowerUsers on domain controllers, since they don't exist.
Modified Files:-------------- pginst/ca: user.c (r1.8 -> r1.9) (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pginstaller/pginst/ca/user.c.diff?r1=1.8&r2=1.9)
