message: Update AddTaskLegendreCoef.C
  change container name to use with subwagons
diff: -AliAnalysisTaskLegendreCoef* AddTaskLegendreCoef(TString name = "name")
  +AliAnalysisTaskLegendreCoef* AddTaskLegendreCoef(const char *suffix = "")
  {
  // get the manager via the static access member. since it's static, you don't need
  // to create an instance of the class here to call the function
  @@ -12,6 +12,9 @@ AliAnalysisTaskLegendreCoef* AddTaskLegendreCoef(TString name = "name")
  if (!mgr->GetInputEventHandler()) {
  return 0x0;
  }
  +
  + TString name;
  + name.Form("LegCoef%s", suffix);
  // by default, a file is open for writing. here, we get the filename
  TString fileName = AliAnalysisManager::GetCommonFileName();
  fileName += ":LongFluctuations"; // create a subfolder in the file
  @@ -26,13 +29,14 @@ AliAnalysisTaskLegendreCoef* AddTaskLegendreCoef(TString name = "name")
  task->SetEtaLimit(0.8);
  task->SetBuildBackground(kFALSE);
  task->SetBuildLegendre(kFALSE);
  + printf("Container name is %s\n",name.Data());
  // add your task to the manager
  mgr->AddTask(task);
  // your task needs input: here we connect the manager to your task
  mgr->ConnectInput(task,0,mgr->GetCommonInputContainer());
  // same for the output
  - mgr->ConnectOutput(task,1,mgr->CreateContainer("EtaBG", TList::Class(), AliAnalysisManager::kOutputContainer, fileName.Data()));
  + mgr->ConnectOutput(task,1,mgr->CreateContainer(name.Data(), TList::Class(), AliAnalysisManager::kOutputContainer, fileName.Data()));
  // in the end, this macro returns a pointer to your task. this will be convenient later on
  // when you will run your analysis in an analysis train on grid
  return task;
  