[Bug libstdc++/119266] libstdc++.modules.json has wrong path

[sjames at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119266

--- Comment #2 from Sam James <sjames at gcc dot gnu.org> ---
(To state the obvious: the PR119081 fix didn't solve it for this case.)