Reples to a message in a command.
A client index of 0 will use PrintToServer(). If the command was from the console, PrintToConsole() is used. If the command was from chat, PrintToChat() is used.
void ReplyToCommand(int client, const char format, any ...)
Client index, or 0 for server.
Variable number of format parameters.
If the client is not connected or invalid.