nuke: fix import
nuke: fix import

I think broken by f28a7ebc2c3662a8a9b8eebf09c47b6c710e4d26

Signed-off-by: Sage Weil <6dd34506bbd5e58221bbb3e4732d97c91f02277b@inktank.com>

dreamhost/teuthology,ivotron/teuthology,michaelsevilla/teuthology,ivotron/teuthology,dmick/teuthology,ceph/teuthology,SUSE/teuthology,SUSE/teuthology,tchaikov/teuthology,ceph/teuthology,t-miyamae/teuthology,zhouyuan/teuthology,dmick/teuthology,ktdreyer/teuthology,robbat2/teuthology,caibo2014/teuthology,zhouyuan/teuthology,tchaikov/teuthology,michaelsevilla/teuthology,t-miyamae/teuthology,dreamhost/teuthology,dmick/teuthology,caibo2014/teuthology,yghannam/teuthology,ktdreyer/teuthology,SUSE/teuthology,yghannam/teuthology,robbat2/teuthology