[NFC][TTreeProcessorMT] Fix formatting of some comments
[NFC][TTreeProcessorMT] Fix formatting of some comments

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