 .--------------------------------------------------------.
| USAGE: SITE CHGRP <username> <group> [<group>]           |
|                                                          |
| <username> The username to edit.                         |
| <group>    The group to toggle for this user.            |
| [<group>]  An optional second group to toggle            |
|                                                          |
| SITE CHGRP <username> by itself to list a users affils.  |
 `--------------------------------------------------------'
