trivial: make unique one line and change a comment
trivial: make unique one line and change a comment

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