Pass a genuine str instance to os.path.abspath, not our wrapper.
Pass a genuine str instance to os.path.abspath, not our wrapper.

Ensure that we pass a genuine str otherwise on the internal Windows
implementation of ``os.path.abspath`` an ``if path`` conditional will
incorrectly evaluate to ``False`` if our resource does not exist, and
will then return the current working directory instead, ie. the
equivalent of calling ``os.path.abspath("")``.

Signed-off-by: Chris Lamb <711c73f64afdce07b7e38039a96d2224209e9a6c@chris-lamb.co.uk>

davidmiller/ffs,davidmiller/ffs