fixed regex literals
fixed regex literals

niboshi/chainer,ktnyt/chainer,jnishi/chainer,keisuke-umezawa/chainer,niboshi/chainer,okuta/chainer,chainer/chainer,wkentaro/chainer,chainer/chainer,pfnet/chainer,ktnyt/chainer,hvy/chainer,jnishi/chainer,aonotas/chainer,okuta/chainer,rezoo/chainer,ktnyt/chainer,chainer/chainer,chainer/chainer,hvy/chainer,ronekko/chainer,keisuke-umezawa/chainer,wkentaro/chainer,hvy/chainer,okuta/chainer,keisuke-umezawa/chainer,tkerola/chainer,wkentaro/chainer,anaruse/chainer,niboshi/chainer,okuta/chainer,ktnyt/chainer,niboshi/chainer,hvy/chainer,jnishi/chainer,jnishi/chainer,keisuke-umezawa/chainer,wkentaro/chainer