fix: run fixer tools in the repo root as cwd so they can use the working copy...
fix: run fixer tools in the repo root as cwd so they can use the working copy
This lets fixer tools do things like find configuration files, with the caveat
that they'll only see the version of that file in the working copy, regardless
of what revisions are being fixed.
Differential Revision:
https://phab.mercurial-scm.org/D6440