[THCGeneral] Use `labs` instead of `abs` for long operand
[THCGeneral] Use `labs` instead of `abs` for long operand

torch/cutorch,yvan-sraka/cutorch,yvan-sraka/cutorch,wickedfoo/cutorch,wickedfoo/cutorch,luketwitter/cutorch,luketwitter/cutorch,torch/cutorch,torch/cutorch