Automatic merge from submit-queue (batch tested with PRs 51628, 51637, 51490, 51279, 51302)
Fix printISCSIVolumeSource to show kubectl describe properly
**What this PR does / why we need it**:
After merging #51189, 'kubectl describe' doesn't show persistent volume properly if the volume is iSCSI.
This PR fixes the problem.
**Which issue this PR fixes** : Fixes#51635
**Special notes for your reviewer**:
Result without InitiatorName.
```
% k describe pv pv0001
Name: pv0001
Labels: <none>
Annotations: volume.beta.kubernetes.io/storage-class=slow
StorageClass: slow
Status: Available
Claim:
Reclaim Policy: Recycle
Access Modes: RWO
Capacity: 1Gi
Message:
Source:
Type: ISCSI (an ISCSI Disk resource that is attached to a kubelet's host machine and then exposed to the pod)
TargetPortal: 192.168.122.85:3260
IQN: iqn.2017-05.com.example:rhel7
Lun: 0
ISCSIInterface default
FSType: ext4
ReadOnly: true
Portals: [192.168.122.7:3260]
DiscoveryCHAPAuth: false
SessionCHAPAuth: false
SecretRef: <nil>
InitiatorName: <none>
Events: <none>
```
Result with InitiatorName.
```
% k describe pv pv0001
Name: pv0001
Labels: <none>
Annotations: volume.beta.kubernetes.io/storage-class=slow
StorageClass: slow
Status: Available
Claim:
Reclaim Policy: Recycle
Access Modes: RWO
Capacity: 1Gi
Message:
Source:
Type: ISCSI (an ISCSI Disk resource that is attached to a kubelet's host machine and then exposed to the pod)
TargetPortal: 192.168.122.85:3260
IQN: iqn.2017-05.com.example:rhel7
Lun: 0
ISCSIInterface default
FSType: ext4
ReadOnly: true
Portals: [192.168.122.7:3260]
DiscoveryCHAPAuth: false
SessionCHAPAuth: false
SecretRef: <nil>
InitiatorName: iqn.1994-05.com.redhat:185ce16b55ad
Events: <none>
```
@rootfs @humblec @jsafrane
**Release note**:
```
NONE
```
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