handle assigning None to multiple variables (issue 116)
handle assigning None to multiple variables (issue 116)

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