Normalize paths in flatten

[loosebazooka]

This normalizes all paths before flattening.

When flatting tars with equivalent paths ./etc/duck vs etc/duck/ flatten would just let them all in the flattened result. loading those images into a local container runtime would result in an error with repeated paths error. This instead normalizes them to etc/duck to prevent this.

This doesn't normalize absolute paths like /etc/duck

[thesayyn]

Wouldn't it be better to normalize them to ./? Its much more readable.

[loosebazooka]

I guess I have no preference. I can switch it

[loosebazooka]

@thesayyn I have a followup for this that will just preserve the seen path while deduplicating