[commit: packages/hpc] wip/T9619's head updated: Allow same `Mix` file in different dirs (#9619) (6857115)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/hpc

Branch 'wip/T9619' now includes:

     cb27dd9 Cleanup test.T files using PEP8 style guide
     08afa91 Update fulltest output
     cf88706 Update maintainer
     79ec938 Use System.FilePath functions instead of (++)
     6857115 Allow same `Mix` file in different dirs (#9619)