oft: Enclose 'xmlrunner' import in try-except

If the 'xmlrunner' package cannot be imported, an exception is
thrown. Unhandled, the datapath will not shut down causing the
program to hang. Ensure the datapath is killed before re-raising
the exception.

Signed-off-by: Stephen Finucane <stephenfinucane@hotmail.com>
1 file changed