Code review comment for lp:~oif-team/evemu/fix-evbit-handling

The documentation isn't enough. A developer should be able to look at a device prop file and figure this out themselves. If we couldn't do this in a backwards compatible way, then documenting the issue might be a reasonable approach. However, the proposed merge keeps all backwards compatibility and fixes things going forward. No more time needs to be spent on the issue if the merge is approved, and I'm unaware of any technical reason not to.