
When the system-wide umask setting is more restrictive than the
default setting, the wsgi script directory permissions may not allow
the apache process to access them, resulting in errors.
A similar fix was applied to Keystone some time ago, see [1].
[1] - 4f15fb64b1
Change-Id: Ie9769657dc530bc895a3119b3e458864a8b5f293