Add clang-format check to circleci
Add clang-format check to circleci

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