message: Add missing TGrid::Connect
diff: #include <TH1F.h>
  #include <TH2F.h>
  #include <TChain.h>
  +#include <TGrid.h>
  ClassImp(AliAnalysisTaskSEDmesonPIDSysProp)
  @@ -470,6 +471,9 @@ void AliAnalysisTaskSEDmesonPIDSysProp::UserExec(Option_t *)
  //________________________________________________________________________
  int AliAnalysisTaskSEDmesonPIDSysProp::LoadEffSystFile()
  {
  + if (!gGrid) {
  + TGrid::Connect("alien://");
  + }
  TFile* infile = TFile::Open(fSystFileName.Data());
  if(!infile) return 1;
  