Merge branch 'master-my-topic' into '21.0'

fix hidden Character issue introduced by migration to rel 21

See merge request !2477

Reconstruction/RecExample/RecExOnline/python/test_statistics.py

-# Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
-
 # -*- coding: utf-8 -*-
+# Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
 """
 Test statistic functions.
 """

Reconstruction/RecExample/RecExOnline/python/utils.py

-# Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
-
 # -*- coding: utf-8 -*-
+# Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
 from collections import defaultdict
 import numpy as np
 def tree(key_wrapper = None):
@@ -59,4 +58,4 @@ class TreeDict(defaultdict):
                 ret += SPACE(' '*len_key)*(level+1) + LS(str(val).ljust(len_key)) + '\n' 
         return ret
     def _repr_pretty_(self, p, cycle):
-        return p.text(repr(self))
\ No newline at end of file
+        return p.text(repr(self))