[DF] Fix diagnostic of sparse/contiguous storage in TTreeReaderArray
[DF] Fix diagnostic of sparse/contiguous storage in TTreeReaderArray

olifre/root,olifre/root,karies/root,root-mirror/root,karies/root,root-mirror/root,olifre/root,karies/root,olifre/root,root-mirror/root,root-mirror/root,olifre/root,root-mirror/root,karies/root,olifre/root,root-mirror/root,karies/root,olifre/root,karies/root,karies/root,root-mirror/root,olifre/root,olifre/root,olifre/root,karies/root,olifre/root,root-mirror/root,root-mirror/root,karies/root,root-mirror/root,karies/root,karies/root,root-mirror/root