[lld] [test] Fixes #120514 (PR #125450)

[Hans Wennborg via llvm-commits]

zmodem wrote:

> Perhaps fixed by [c92f204](https://github.com/llvm/llvm-project/commit/c92f20416e6dbbde9790067b80e75ef1ef5d0fa4) or [046dd4b](https://github.com/llvm/llvm-project/commit/046dd4b28b9c1a75a96cf63465021ffa9fe1a979) ...

No, we hit the error also at b693e1cf which comes after: https://logs.chromium.org/logs/chromium/buildbucket/cr-buildbucket/8723973565647921217/+/u/package_clang/stdout

https://github.com/llvm/llvm-project/pull/125450