message: MC event handler fix
diff: @@ -64,8 +64,10 @@ AliPerformanceTask* AddTaskPerformanceTPCdEdxQA(Bool_t bUseMCInfo=kFALSE, Bool_t
  return NULL;
  }
  - AliMCEventHandler *mcH = (AliMCEventHandler*)mgr->GetMCtruthEventHandler();
  - if (!mcH && bUseMCInfo) {
  + AliMCEventHandler* mchandler = new AliMCEventHandler;
  + mchandler->SetReadTR(kFALSE);
  + mgr->SetMCtruthEventHandler(mchandler);
  + if (!mchandler && bUseMCInfo) {
  Error("AddTaskPerformanceTPCdEdxQA", "MC input handler needed!");
  return NULL;
  }
  