Fixed wrong place of _gradOutput initialization
Fixed wrong place of _gradOutput initialization

jhjin/nn,kmul00/nn,diz-vara/nn,sagarwaghmare69/nn,caldweln/nn,apaszke/nn,joeyhng/nn,elbamos/nn,xianjiec/nn,PraveerSINGH/nn,jonathantompson/nn,nicholas-leonard/nn,eriche2016/nn,colesbury/nn