This command lists registered vhosts to the operator if a Key is specified, only entries whos nick or vhost match the pattern given in
If a #X-Y style is used, only entries between the range of X and Y will be displayed, e.g. #1-3 will display the first 3 nick/vhost entries.
The list uses the value of NSListMax as a hard limit for the number of items to display to a operator at any 1 time.