chore: the argument is already a string, there's no need to use fmt.S…

[testwill]

…printf

Pull Request (PR) Checklist

• [ ] I have read the CONTRIBUTING doc
• [ ] PR is from a topic/feature/bugfix branch off the dev branch (right side)
• [ ] PR is against the dev branch (left side)
• [ ] Merlin compiles without errors
• [ ] Passes linting checks and unit tests
• [ ] Updated CHANGELOG
• [ ] Updated README documentation (if applicable)
• [ ] Update Merlin version number in pkg/merlin.go (if applicable)

Change Type

• [ ] Addition
• [ ] Bugfix
• [ ] Modification
• [ ] Removal
• [ ] Security

Description