fix clippy - Githubissues

pingcap / talent-plan

open source training courses about distributed database and distributed systems

https://tidb.io/talent-plan

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fix clippy #358

Open AndreMouche opened 4 years ago

AndreMouche commented 4 years ago

Signed-off-by: shirly AndreMouche@126.com

What problem does this PR solve?

Issue number: close #xxx
Breif description of the problem:

What is changed and how it works?

Check List

Tests

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

Side effects

Possible performance regression
Increased code complexity

Related changes

Need to update the documentation