+ Show version information about a particular IRC server in the network.
+ .
+ <target> can be a server name, the nickname of a client connected to
+ a specific server, or a mask matching a server name in the network.
+ The server of the current connecion is used when <target> is omitted.
+ .
+ Please note: in normal operation, the version number ends in a dot
+ (".", for example "ngIRCd-20.1."). If it ends in ".1" (for example
+ "ngIRCd-20.1.1", same version than before!), the server is running in
+ debug-mode; and if it ends in ".2", the "network sniffer" is active!
+ Keep your privacy in mind ...
+
+ References:
+ - RFC 2812, 3.4.3 "Version message"