Skip docstring test for unused protobuf file
Skip docstring test for unused protobuf file

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