[Finder] Fix findertest readability
minor #11635 [Finder] Fix findertest readability (1emming)

This PR was submitted for the master branch but it was merged into the 2.3 branch instead (closes #11635).

Discussion
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[Finder] Fix findertest readability

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | part of #11631, #11588
| License       | MIT

When running on Ubuntu it is hard to setup an account that allows the `chmod` to downgrade the rights on a directory but is not allow to read from the downgraded directory.

Commits
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8a47b62 [Finder] Fix findertest readability