Return concise output in cases where there are no entries to display in a table for pvsadm purge

[kishen-v]

What happened:
On executing pvsadm purge command across resources, it was observed that an empty table was returned in cases where there are no resources to be deleted. This can be improved to return a simple log stating there are no resources found for deletion.

kishenv@kishen-mbp-m1 ~ % pvsadm purge vms --workspace-id 79e6e139-f6d8-46a6-819-testing123
+------+--------------+-------+------+-----+--------+---------------+
| NAME | IP ADDRESSES | IMAGE | CPUS | RAM | STATUS | CREATION DATE |
+------+--------------+-------+------+-----+--------+---------------+
+------+--------------+-------+------+-----+--------+---------------+

What you expected to happen:
A simple log with the relevant information.

How to reproduce it (as minimally and precisely as possible):
pvsadm purge (across any resource)

Anything else we need to know?:

Environment:

• pvsadm version (use pvsadm --version):
• Environment - On-Prem or IBM PowerVS:
• OS (e.g: cat /etc/os-release):
• Kernel (e.g. uname -a):
• Others:

[kishen-v]

/remove-kind bug
/good-first-issue
/priority awaiting-more-evidence

[ppc64le-cloud-bot]

@kishen-v:
This request has been marked as suitable for new contributors.

Please ensure the request meets the requirements listed here.

If this request no longer meets these requirements, the label can be removed
by commenting with the /remove-good-first-issue command.

In response to this:

/remove-kind bug
/kind feature
/good-first-issue
/priority awaiting-more-evidence

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

[pjsharath28]

/assign

[kishen-v]

The behaviour is slightly different when there are no networks to be purged:

I1115 09:37:04.696844   20688 networks.go:54] Purge networks for the workspace ID: 79e6e139-f6d8-46a6-819c-Testing123

--NO DATA FOUND--
+
+

VMS

kishenv@kishen-mbp-m1 ~ % pvsadm purge vms --workspace-id 79e6e139-f6d8-46a6-819c-Testing123
+------+--------------+-------+------+-----+--------+---------------+
| NAME | IP ADDRESSES | IMAGE | CPUS | RAM | STATUS | CREATION DATE |
+------+--------------+-------+------+-----+--------+---------------+
+------+--------------+-------+------+-----+--------+---------------+