MFV r299449: 6763 aclinherit=restricted masks inherited permissions by group
perms (groupmask)

Reviewed by: Gordon Ross <gwr@nexenta.com>
Reviewed by: Yuri Pankov <yuri.pankov@nexenta.com>
Author: Albert Lee <trisk@nexenta.com>

openzfs/openzfs@eebb483d0cd68bdc4cf03c01fdeba9af160c17af