Fix help message case for podman version

[kprav33n]

What this PR does / why we need it:

This is a cosmetic change. The help message for podman version is in
title case whereas all other command help messages are not in title
case. This stands out as inconsistent when looking at the output of
podman help.

This PR fixes the case for the help message for the version subcommand.

How to verify it

Run podman help and look at the help string for the version subcommand.

Before

podman help | grep version
  version     Display the Podman Version Information

After

podman help | grep version
  version     Display the Podman version information

Special notes for your reviewer:

Just for comparison, I double checked the help message for the version subcommand in docker.

$ docker help | grep version
  -v, --version            Print version information and quit
  version     Show the Docker version information

[TomSweeneyRedHat]

Nice eagle eye and fix @kprav33n ! TYVM
LGTM

[kprav33n]

Thank you! I'm working on adding a corresponding test to go with it. Or, should I add [NO NEW TESTS NEEDED] in the commit body? Let me resubmit shortly.

[kprav33n]

/test all

[openshift-ci]

@kprav33n: Cannot trigger testing until a trusted user reviews the PR and leaves an /ok-to-test message.

In response to this:

/test all

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/test-infra repository.

[mheon]

Test failure looks like a flake

[rhatdan]

/approve
/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: kprav33n, rhatdan

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [rhatdan]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment