[Threshold]

pawn Код:

CMD:say(playerid, params[])
{  
    if(!PlayerInfo[playerid][pAdmin]) return 0;
    if(params[0] == '\0') return SendClientMessage(playerid, 0xFF0000FF, "Usage: /say [text]");
    new str[135];
    format(str, sizeof(str), "say %s", params);
    SendRconCommand(str);
    return 1;
}

Still don't need sscanf.