Daemon: Fix endpoint log
Daemon: Fix endpoint log

Fix format in endpoint log. Failure:

```
pod-kube-system-cilium-q927g-cilium-agent.log:2018-06-17T15:44:42.708207519Z level=debug msg="synchronously waiting for endpoint %d to be in %s state20745ready"
pod-kube-system-cilium-q927g-cilium-agent.log:2018-06-17T15:44:43.835210465Z level=debug msg="synchronously waiting for endpoint %d to be in %s state6311ready"
pod-kube-system-cilium-q927g-cilium-agent.log:2018-06-17T15:44:47.138650882Z level=debug msg="synchronously waiting for endpoint %d to be in %s state61774ready"
```

Signed-off-by: Eloy Coto <2a8acc28452926ceac4d9db555411743254cf5f9@gmail.com>

cilium/cilium,tklauser/cilium,scanf/cilium,tgraf/cilium,cilium-team/cilium,eloycoto/cilium,tklauser/cilium,tgraf/cilium,cilium/cilium,tklauser/cilium,tgraf/cilium,michi-covalent/cilium,michi-covalent/cilium,cilium-team/cilium,michi-covalent/cilium,cilium/cilium,scanf/cilium,tgraf/cilium,eloycoto/cilium,eloycoto/cilium,scanf/cilium,tklauser/cilium,cilium/cilium,michi-covalent/cilium,michi-covalent/cilium,eloycoto/cilium,tklauser/cilium,eloycoto/cilium,scanf/cilium,scanf/cilium,cilium/cilium,scanf/cilium,tgraf/cilium,eloycoto/cilium,eloycoto/cilium,tgraf/cilium,scanf/cilium