[lHesoyaml]

pawn Код:

public OnPlayerCommandPerformed(playerid, cmdtext[], success)
{
if(!success)
    {
        new rStr[148];
        format(rStr, sizeof(rStr), "{FFFFFF}O comando {FFFFFF}%s {FFFFFF} й inexistente)", cmdtext);
        SendClientMessage(playerid, 0x33AA33AA, rStr);
        return true;
    }
return true;
}

E use a return como o Macintosh disse.