[libcxx-commits] [libcxx] [libc++][test] Fix a logical mistake introduced by #77058 (PR #77867)

[Mark de Wever via libcxx-commits]

https://github.com/mordante approved this pull request.

Thanks! I missed it to. I'll land the patch on your behalf.

https://github.com/llvm/llvm-project/pull/77867