Function broot::path::normalize_path

pub fn normalize_path<P: AsRef<Path>>(path: P) -> PathBuf

Improve the path to try remove and solve .. token.

This assumes that a/b/../c is a/c which might be different from what the OS would have chosen when b is a link. This is OK for broot verb arguments but can't be generally used elsewhere (a more general solution would probably query the FS and just resolve b in case of links).

This function ensures a given path ending with '/' still ends with '/' after normalization.