fix empty line in /etc/default/kubelet

There is an extra empty line in kubelet and it breaks kubelet service on
masters.

```
DAEMON_ARGS="\
--require-kubeconfig \
--kubeconfig=/etc/kubernetes/kubelet.kubeconfig \
--pod-manifest-path=/etc/kubernetes/manifests \
--allow-privileged=True \
--cluster_dns=10.254.0.10 \
--cluster_domain=us-west-2.compute.internal \
--cni-bin-dir=/opt/cni/bin \
--hostname-override=ctl01 \
--v=2 \
--node-labels=node-role.kubernetes.io/master=true \
--register-with-taints=node-role.kubernetes.io/master=:NoSchedule \

--network-plugin=cni \
--network-plugin-dir=/etc/cni/net.d \
--file-check-frequency=5s \
"
```

Change-Id: I754fbbea165c38c3bf59fb279e8e9a3b7dc0b76a
1 file changed