Clarify difference TFile::Open and new TFile() when file does not exist (#8478)
Clarify difference TFile::Open and new TFile() when file does not exist (#8478)



olifre/root,olifre/root,olifre/root,olifre/root,olifre/root,olifre/root,olifre/root,olifre/root,olifre/root,olifre/root,olifre/root