Patch #1061924: add documentation for BaseRotatingHandler and correct reference to non-existent function 'setRollover()'.
Patch #1061924: add documentation for BaseRotatingHandler and correct
reference to non-existent function 'setRollover()'.

sk-/python2.7-type-annotator,sk-/python2.7-type-annotator,sk-/python2.7-type-annotator