adjust opeator= and replace ERROR with INFO


git-svn-id: svn+ssh://svn.cern.ch/reps/atlasoff/Control/AthenaKernel/branches/AthenaKernel-00-53-04-branch@567287 4525493e-7705-40b1-a816-d608a930855b
clean up


git-svn-id: svn+ssh://svn.cern.ch/reps/atlasoff/Control/AthenaKernel/branches/AthenaKernel-00-53-04-branch@567294 4525493e-7705-40b1-a816-d608a930855b