fix utests on windows python 2.5
fix utests on windows python 2.5

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