orchestra/run: more concise logging when we run commands
orchestra/run: more concise logging when we run commands

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

SUSE/teuthology,ceph/teuthology,SUSE/teuthology,dmick/teuthology,ceph/teuthology,SUSE/teuthology,ktdreyer/teuthology,dmick/teuthology,dmick/teuthology,ktdreyer/teuthology