logging: Fix use-before-access in debug.cc
logging: Fix use-before-access in debug.cc

Signed-off-by: Vangelis Koukis <fd383fca012d54fb20998764d1291eb276be2428@cslab.ece.ntua.gr>
Signed-off-by: Constantinos Venetsanopoulos <5aa4b75752c9a2933cd7300cda758def9255d1ca@cslab.ece.ntua.gr>
Signed-off-by: Colin McCabe <c0eabe2887ac1e91c280795b9fca010e21066283@hq.newdream.net>

ajnelson/ceph,ajnelson/ceph,ajnelson/ceph,ajnelson/ceph,ajnelson/ceph,ajnelson/ceph