======Synopsis:======
[[on]] [<modes>]names [<serial#>] [-|^]<match> { <action> }

======Description:======
This hook is triggered whenever the client receives server output from
the [[NAMES]] command.

======Parameters:======
|$0   |channel name                                 |
|$1-  |nicknames of (visible) users on the channel  |

======Other Notes:======
This hook is not triggered by the implicit [[NAMES]] done when the client joins
a channel.  Hook the [[on 353|353]] numeric instead.