> I'm slightly concerned that this might be a bit cryptic and may cause > problems on the offchance that someone really does have a '+' or '-' > at the end of their path. Other suggestions welcome.
I think it's cryptic too. It's also easy to do yourself, by setting the include path to /foo/bar/baz, /foo/bar, /foo. If you really think explicit support is needed for this, I'd suggest making it a separate config flag, like WALK_INCLUDE_PATH => 'UP' or something. - Perrin
