feat: Support configuring rule.Reason as a Sprintf format string

[jessehu]

So we can define one templated Reason to generate many Reasons, e.g. generating Reasons for Nvidia GPU Xid errors in dmesg log.

Close #1067

[k8s-ci-robot]

Hi @jessehu. Thanks for your PR.

I'm waiting for a kubernetes 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.

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[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: jessehu
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[hakman]

/ok-to-test

[jessehu]

/retest

[jessehu]

Thanks @hakman for review! Looks like pull-npd-e2e-test failed twice. Not sure if it's related to this PR ?

[hakman]

Thanks @hakman for review! Looks like pull-npd-e2e-test failed twice. Not sure if it's related to this PR ?

Unrelated to the PR, please ignore.

[jessehu]

/retest

[jessehu]

Thanks @hakman. 1 test passed now but 2 tests still failed. Please take a look again.

[jessehu]

/retest

[jessehu]

/retest

[k8s-ci-robot]

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

Test name	Commit	Details	Required	Rerun command
pull-npd-e2e-test	411a1ba	link	true	/test pull-npd-e2e-test

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

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. I understand the commands that are listed here.