Merge pull request #32092 from asalkeld/get-strange-output

Automatic merge from submit-queue

Improve the get output for completed pods

**What this PR does / why we need it**:

- rename FinishPrint() to AfterPrint()
- add a newline to separate it from the table
- remove the "objects" and ()
- assume plural

**Which issue this PR fixes** 
fixes #31160

**Special notes for your reviewer**:
None

**Release note**:
```release-note
Improve the get output for completed pods
```

pkg/kubectl/cmd/cmd_test.go

@@ -168,7 +168,7 @@ func (t *testPrinter) HandledResources() []string {
 	return []string{}
 }
 
-func (t *testPrinter) FinishPrint(output io.Writer, res string) error {
+func (t *testPrinter) AfterPrint(output io.Writer, res string) error {
 	return nil
 }