Adding actual mu to the AnalysisTop output as this is needed for control plots when actual mu reweighting is used.
Also fixing indentation in EventSaverFlatNtuple.cxx as this file was a mess. This MR contains 2 commits, the first commit contains just indentation fixes done with a script and can be ignored. The actual changes are only in the second commit, so I would suggest to review those.
Cheers, Tomas