Add --coverage
Add --coverage

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