Fix format of config.show
Fix format of config.show

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