Fix error format strings according to best practices from CodeReviewComments

[CodeLingoBot]

Use CodeLingo to automatically fix error format strings following the
Go Code Review Comments guidelines in CONTRIBUTING.md.

This patch was generated by running the CodeLingo Rewrite Flow over the "go-error-fmt" Tenet. Note: the same Tenet can be used to automate PR reviews and generate contributor docs by Installing the CodeLingo GitHub app. Learn more at codelingo.io.

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[rramkumar1]

@CodeLingoBot I assume a bot cant sign the CLA?

[waigani]

@rramkumar1 I've signed the CLA on behalf of CodeLingo Ltd, github.com/codelingo, of which @CodeLingoBot is a member.

Does that work? Alternatively, we can push the PR under a human account.

[rramkumar1]

/ok-to-test
/lgtm
/assign @MrHohn

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: CodeLingoBot, rramkumar1

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[MrHohn]

/lgtm