chore: fix C lint errors (issue #6887)

[dipexplorer]

Resolves #6887.

Description

What is the purpose of this pull request?

This pull request:

• Suppressed a false-positive uninitvar warning in benchmark.length.c for dmeanvarpn.

Related Issues

Does this pull request have any related issues?

This pull request:

• resolves Fix C lint errors #6887

Questions

Any questions for reviewers of this pull request?

No.

Other

Any other information relevant to this pull request? This may include screenshots, references, and/or implementation notes.

No.

Checklist

Please ensure the following tasks are completed before submitting this pull request.

• Read, understood, and followed the contributing guidelines.

---

@stdlib-js/reviewers

[stdlib-bot]

Coverage Report

Package	Statements	Branches	Functions	Lines
stats/base/dmeanvarpn	$\color{green}518/518$ $\color{green}+100.00\%$	$\color{green}45/45$ $\color{green}+100.00\%$	$\color{green}4/4$ $\color{green}+100.00\%$	$\color{green}518/518$ $\color{green}+100.00\%$

The above coverage report was generated for the changes in this PR.

[kgryte]

Ref: #6895

[stdlib-bot]

Thank you for working on this pull request. However, we cannot accept your contribution as the issue this pull request seeks to resolve has already been addressed in a different pull request or commit.

Thank you again for your interest in stdlib, and we look forward to reviewing your future contributions.