Merge pull request #46598 from xiangpengzhao/fix-kubectl-version

Automatic merge from submit-queue (batch tested with PRs 46210, 48607, 46874, 46598, 49240)

Make "kubectl version" json format output more readable.

**What this PR does / why we need it**:
##39858 adds a flag --output to `kubectl version`, but the json format output is displayed in one line. It's not so readable. This PR fixes it.

and

- adds a shorthand for `output`
- ~~refactors that: if `--short` is specified, `--output` will be ignored~~

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #43750

**Special notes for your reviewer**:
/cc @php-coder @alejandroEsc 

**Release note**:

```release-note
NONE
```

hack/lib/test.sh

@@ -327,7 +327,7 @@ kube::test::version::object_to_file() {
 kube::test::version::json_object_to_file() {
   flags=$1
   file=$2
-  kubectl version $flags --output json | sed -e s/'\"'/''/g -e s/'}'/''/g -e s/'{'/''/g -e s/'clientVersion:'/'clientVersion:,'/ -e s/'serverVersion:'/'serverVersion:,'/ | tr , '\n' > "${file}"
+  kubectl version $flags --output json | sed -e s/' '/''/g -e s/'\"'/''/g -e s/'}'/''/g -e s/'{'/''/g -e s/'clientVersion:'/'clientVersion:,'/ -e s/'serverVersion:'/'serverVersion:,'/ | tr , '\n' > "${file}"
 }
 
 kube::test::version::json_client_server_object_to_file() {