Changelog:
=========
- Fix crash while obtaining object_type() of an Unknown node.
- Fix a bug where in attempting to handle the patching of distutils by virtualenv,
library submodules called distutils (e.g. numpy.distutils) were included also.
Signed-off-by: Xu Huan <xuhuan.fnst@fujitsu.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
