Fix warning.


git-svn-id: svn+ssh://svn.cern.ch/reps/atlasoff/Control/DataModel/trunk@537571 4525493e-7705-40b1-a816-d608a930855b
Fix clang warnings


git-svn-id: svn+ssh://svn.cern.ch/reps/atlasoff/Control/DataModel/trunk@537733 4525493e-7705-40b1-a816-d608a930855b