Returns the server's version information.
">
-<helpop key="ping" title="/PING <servername> [:<servername>]" value="
+<helpop key="ping" title="/PING <cookie> [<servername>]" value="
Ping a server. The server will answer with a PONG.
">
-<helpop key="pong" title="/PONG <servername>" value="
+<helpop key="pong" title="/PONG <cookie> [<servername>]" value="
Your client should send this to answer server PINGs. You
should not issue this command manually.
">