Tests that if no encoding is defined on the output that JJB does not
accidentally trigger a recursion issue when iterating over a large
number of jobs and attempting to wrap the output stream.
Inspired by commit message from: https://review.openstack.org/283441
Change-Id: Ie69c3af0beb9fd7c589a436e8c6d2862210f8a4c
Co-Authored-By: Hao Liu <hliu@redhat.com>
Signed-off-by: Thanh Ha <thanh.ha@linuxfoundation.org>