Fix encoding based on python's version in pickle.load in get_cifar
Fix encoding based on python's version in pickle.load in get_cifar

ronekko/chainer,okuta/chainer,wkentaro/chainer,ktnyt/chainer,cupy/cupy,aonotas/chainer,niboshi/chainer,rezoo/chainer,cupy/cupy,jnishi/chainer,chainer/chainer,hvy/chainer,hvy/chainer,chainer/chainer,anaruse/chainer,delta2323/chainer,ktnyt/chainer,okuta/chainer,chainer/chainer,tkerola/chainer,keisuke-umezawa/chainer,ysekky/chainer,keisuke-umezawa/chainer,niboshi/chainer,niboshi/chainer,ktnyt/chainer,niboshi/chainer,jnishi/chainer,hvy/chainer,jnishi/chainer,kashif/chainer,wkentaro/chainer,pfnet/chainer,okuta/chainer,keisuke-umezawa/chainer,wkentaro/chainer,ktnyt/chainer,hvy/chainer,keisuke-umezawa/chainer,cupy/cupy,kiyukuta/chainer,wkentaro/chainer,jnishi/chainer,cupy/cupy,okuta/chainer,chainer/chainer