• Have you followed the guidelines in our Contributing document?
• Have you checked to ensure there aren't other open Pull Requests for the same change?
• Have you added an explanation of what your changes do and why you'd like us to include them?
• Have you written new tests for your changes? Here's an example.
• Have you successfully run brew style with your changes locally?
• Have you successfully run brew tests with your changes locally?
• Have you successfully run brew man locally and committed any changes?

Related: Homebrew/homebrew-core#64294

This allows us to quickly identify bump PRs as updates to Linux formulae, which for the time being, should not be updated in homebrew-core; see #64175 (comment)

I was not really expecting people to upgrade linux-only formulae here before completing the merging of both repositories. Especially as no bottles are built; and not reverse dependencies are tested. So we may introduce breakages in linuxbrew-core, which is far from ideal.