Fixed inaccurate flag name
Fixed inaccurate flag name

fengzhyuan/mexopencv,ninghang/opencvmex,CVML/mexopencv,bearpaw/mexopencv,CVML/mexopencv,nanit/mexopencv,bearpaw/mexopencv,ninghang/opencvmex,fengzhyuan/mexopencv,nanit/mexopencv