Syntax: SGLINE {ADD|DEL|LIST} [*][<field>][*] [reason]

Services will send out a global s(ervices)g-line to all
servers. Any client connecting to a server that matches FIELD
in its "real-name" field will be disconnected.
Also can be shown via /stats g

Example: /Msg OperServ SGLINE ADD *fuck* Bad Language
