Fix clang-tidy error in dbms_src_Common_StringSearcher_h.txt and dbms_src_Common_StringUtils_StringRefUtils_h.txt

[SeaRise]

What problem does this PR solve?

Issue Number: close #2933, close #2920

Problem Summary:

What is changed and how it works?

Proposal: xxx

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Release note

None

[ti-chi-bot]

[REVIEW NOTIFICATION]

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• fuzhe1989

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[SeaRise]

/merge

[ti-chi-bot]

@SeaRise: It seems you want to merge this PR, I will help you trigger all the tests:

/run-all-tests

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[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: a0c84e3

[ti-chi-bot]

@SeaRise: Your PR was out of date, I have automatically updated it for you.

At the same time I will also trigger all tests for you:

/run-all-tests

If the CI test fails, you just re-trigger the test that failed and the bot will merge the PR for you after the CI passes.

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 ti-community-infra/tichi repository.