List and track changelists (for the review daemon)
'p4 review' lists changelists that have not been reviewed before, as tracked by the named counter. If the counter is not given, 'p4 review' lists all changelists. If a changelist# and counter are given, 'p4 review' sets the counter to that changelist# and produces no output.
'p4 review' is not meant as an end-user command. It exists to support an automated change review daemon.