Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>. Add unit test for get pod -o wide **What this PR does / why we need it**: Add unit test for get pod -o wide; In func printPod, one can choose to use "options.Wide", so unit test is needed accordingly. **Release note**: ```release-note ``` NONE