Temp directory formatting breaks rubocop configuration

[colinux]

Last patch release 0.40.1 ignores .rubocop.yml files, because rubocop sees filepath of a temporary file, which is not in the directory of the .rubocop.yml workspace, so hierarchical config is not applied.

The diagnosis are not affected, because code is passed as stdin. v0.40.0 is ok.

[castwide]

Confirmed. This is a nasty conundrum: autocorrect only works on a physical file (not stdin), and the -c argument for specifying the config doesn't work with autocorrect. That's how it appears for now, anyway. This issue's on the roadmap.

[jimeh]

@colinux PR #403 should fix this issue. If you want to test the PR I'd be happy to try and resolve any issues you might run into.

[colinux]

I can confirm PR #403 works very well. Thanks a lot !