fix comments
fix comments

anaruse/chainer,rezoo/chainer,jnishi/chainer,chainer/chainer,pfnet/chainer,ronekko/chainer,wkentaro/chainer,hvy/chainer,keisuke-umezawa/chainer,wkentaro/chainer,ktnyt/chainer,tkerola/chainer,jnishi/chainer,okuta/chainer,keisuke-umezawa/chainer,hvy/chainer,niboshi/chainer,ktnyt/chainer,niboshi/chainer,niboshi/chainer,jnishi/chainer,keisuke-umezawa/chainer,wkentaro/chainer,chainer/chainer,keisuke-umezawa/chainer,okuta/chainer,hvy/chainer,wkentaro/chainer,chainer/chainer,chainer/chainer,niboshi/chainer,okuta/chainer,okuta/chainer,ktnyt/chainer,jnishi/chainer,hvy/chainer,ktnyt/chainer