Fix logging

[aojea]

Current formatting is broken , the hexdump is multiline, is useful because it shows the ascii characters :)

https://storage.googleapis.com/kubernetes-jenkins/logs/ci-kubernetes-e2e-gce-network-policies/1782092897366052864/artifacts/bootstrap-e2e-minion-group-20kx/kube-network-policies.log

: DstPod (coredns-58cd89f5d-wqdbl/kube-system): 0 NetworkPolicy
I0421 17:13:49.049750       7 controller.go:327] Finished syncing packet 21 took: 72.78µs accepted: true
I0421 17:13:49.156862       7 controller.go:308] Processing sync for packet 22
I0421 17:13:49.156947       7 controller.go:463] checking packet 10.64.2.5:40523 10.64.1.3:53 TCP :: 00000000  00 00 a0 02 7f 94 31 8c  00 00 02 04 05 8c 04 02  |......1.........|
00000010  08 0a 0f 2c c0 89 00 00  00 00 01 03 03 07        |...,..........|
: DstPod (coredns-58cd89f5d-wqdbl/kube-system): 0 NetworkPolicy

[k8s-ci-robot]

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