add user to group script (G)
Full path to the script that will be called when
a user is added to a group using the Windows NT domain administration
tools. It will be run by smbd
8 AS ROOT.
Any %g will be replaced with the group name and
any %u will be replaced with the user name.
Default: add user to group script =
Example: add user to group script = /usr/sbin/adduser %u %g