fix pep8 error under python 3
fix pep8 error under python 3

Under Python 3 print is a function, and the linter does not want to
have white space between the function name and the paren indicating
the call. Remove the space.

Change-Id: I1f262e5d9ff35b6824483cdc401b3f7a80798212
Signed-off-by: Doug Hellmann <0798ebecfb7bc4dfb9d0445c2fa030eb64e1fa1c@doughellmann.com>

openstack/freezer-api,openstack/freezer-api,openstack/freezer-api,openstack/freezer-api