6515322 "misc cleanup neaded for SUNWxsvc package" introduced a packaging
utility proc.drv_utils that simplifies the task of adding/updating a driver
in a package. This script has to go to some trouble when running update_drv
to strip aliases already installed for a driver as update_drv currently
chokes when given a non-unique alias. 6612207 "update_drv fails when alias
already present" is improving that. Together with 6612207, it is
suggested that the duplicate alias checking in proc.drv_utils be
removed as that then becomes unnecessary clutter.