- $us [<opts>] update <number>|<localpart>@[domain] [<reason>] [<comment>]
- $us [<opts>] assign <number>|<localpart>@[domain] <comment>
+ $us [<opts>] update <number>|<localpart>\@[domain] [<reason>] [<comment>]
+ $us [<opts>] assign <number>|<localpart>\@[domain] <comment>