Fixed shellcheck lint for get-lb-ip.sh

[dastgirp]

Description

Shell checks were ignored for file: k8s/get-lb-ip.sh file, this PR fixes the warnings provided by shellcheck (#3544)

Checklist

• Investigated and inspected CI test results
• Unit test and regression tests added
• Evaluated and added CHANGELOG entry if required
• Determined and documented upgrade steps
• Documented user facing changes (create PR based on openshift/openshift-docs and merge into rhacs-docs)

If any of these don't apply, please comment below.

Testing Performed

executed command "make shell-style"

[openshift-ci]

Hi @dastgirp. Thanks for your PR.

I'm waiting for a stackrox member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

I understand the commands that are listed here.

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.

[gavin-stackrox]

/ok-to-test
/lgtm

[gavin-stackrox]

Thanks!

[roxbot]

Images are ready for the commit at 80cfe50.

To use with deploy scripts, first export MAIN_IMAGE_TAG=3.72.x-400-g80cfe50458.