fix for coding guidelines
fix for coding guidelines

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