write list (S)This is a list of users that are given read-write
access to a service. If the connecting user is in this list then
they will be given write access, no matter what the read only
option is set to. The list can include group names using the
@group syntax.Note that if a user is in both the read list and the
write list then they will be given write access.See also the read list
option.Default: write list = <empty string>
Example: write list = admin, root, @staff