The symlinks under .tox were being included for md5sum
calculations.
The md5sum calculations would report an error when a file containing
a space was encountered (which can happen in some .tox libraries such
as setuptools
Change-Id: Ib9bfe55a66e1f27b1e39596b14303c0ef00852c6
Signed-off-by: albailey <Al.Bailey@windriver.com>