Automatic merge from submit-queue (batch tested with PRs 61487, 58353, 61078, 61219, 60792). 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>.
distinguish which labels belong to resource
**Release note**:
```release-note
NONE
```
Usability improvement for `kubectl label ... --list` when listing labels for more than one resource.
Append resource kind/name before its set of labels.
**Before**
```
$ kubectl label dc myapp test-deployment-config label1=test --list
app=myapp
label1=test
label1=test
```
**After**
```
$ kubectl label dc myapp test-deployment-config label1=test --list
Listing labels for DeploymentConfig/myapp:
label1=test
app=myapp
Listing labels for DeploymentConfig/test-deployment-config:
label1=test
```
5286806a52