o Change a suser() call to a suser_xxx(..., PRISON_ROOT) call in the   linuxulator so as to allow privileged processes within a jail() to   invoke the Linux initgroups() system call.  This allows the Linux   "su" to work properly (better) when running a complete Linux   environment under jail().  This problem was reported by Attila   Nagy <bra@fsn.hu>.
o Change a suser() call to a suser_xxx(..., PRISON_ROOT) call in the
  linuxulator so as to allow privileged processes within a jail() to
  invoke the Linux initgroups() system call.  This allows the Linux
  "su" to work properly (better) when running a complete Linux
  environment under jail().  This problem was reported by Attila
  Nagy <bra@fsn.hu>.

Reviewed by:	marcel

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