[Bug libstdc++/67173] experimental/filesystem/operations/current_path.cc FAILs

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67173

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Oops, I'm leaking the memory allocated by realpath() so that needs fixing
anyway.