minor fixes

[slintes]

Why we need this PR

testing tide with little fixes

Changes made

• better phrasing for frozen kernels
• fixed code comment

[clobrano]

/lgtm

[slintes]

/retest

[slintes]

/approve

[slintes]

/retest

[slintes]

/approve cancel

[slintes]

/approve

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: slintes

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[slintes]

/test 4.12-test

[slintes]

/retest

[slintes]

/retest

[slintes]

/retest

[slintes]

/test 4.15-openshift-e2e

[openshift-ci]

@slintes: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/4.16-openshift-e2e	036a3d9	link	false	/test 4.16-openshift-e2e
ci/prow/4.15-openshift-e2e	036a3d9	link	false	/test 4.15-openshift-e2e
ci/prow/4.17-openshift-e2e	036a3d9	link	false	/test 4.17-openshift-e2e

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[slintes]

/cherry-pick release-0.8

[openshift-cherrypick-robot]

@slintes: new pull request created: #340

In response to this:

/cherry-pick release-0.8

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