Fix variable name.
Fix variable name.

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