argumentparser: Do not hide the first exception when argument file is missing
argumentparser: Do not hide the first exception when argument file is missing

fiuba08/robotframework,ldtri0209/robotframework,waldenner/robotframework,fiuba08/robotframework,fiuba08/robotframework,fiuba08/robotframework,ldtri0209/robotframework,waldenner/robotframework,ldtri0209/robotframework,waldenner/robotframework,fiuba08/robotframework,ldtri0209/robotframework,waldenner/robotframework,ldtri0209/robotframework,waldenner/robotframework