Log Message:
Changes SetPolicyType() in threadutil:
* From schedctl(8) of NetBSD-5-RC2, setting of priority for the process running
  at SCHED_OTHER policy is not allowed, so change to skip if SCHED_OTHER is \ 
specified.
* Use sched_get_priority_min() instead of hard coded DEFAULT_SCHED_PARAM (= 0).
* Ajust return code as the "Returns:" section in this function's comment.
  sched_setscheduler(3) return the previous policy if succeed, it may not be 0.

Bump PKGREVISION.