THistSvc::getHists() fix typo
see atlas/Gaudi!26 (merged) and GAUDI-1209
fix typo in THistSvc::getHists() to check inheritance from TH1 instead of TH11
see atlas/Gaudi!26 (merged) and GAUDI-1209
fix typo in THistSvc::getHists() to check inheritance from TH1 instead of TH11