directory 1.3.5.0
* Revert change introduced in the version 1.3.3.2: Non-absolute XDG_*
environment variables are ignored. This behavior is according to
XDG Base Directory Specification version 0.7
( https://specifications.freedesktop.org/basedir-spec/0.7/ar01s02.html )
( https://github.com/haskell/directory/issues/100 )