smbd does not support space in user or group name

[Lin Li]

The winbind enables the use of domain users and groups. The domain user
or group name may contain space such as "Domain Users". But the smbd
does not support this. So I can not access those shares which have their
permission granted to users and groups like "Domain Users". Is it
possible to remove the space in "LIST_SEP" in the include/local.h or not
to use "LIST_SEP" when getting user and group from user list and group
list?

Thanks,
Lin