[docs] py2 fileConfig in module logging.config missing description for disable_existing_loggers

Hi disable_existing_loggers should be described also for py versions < 3k fileConfig(fname, defaults=None, disable_existing_loggers=1) from the http://docs.python.org/py3k/library/logging.html If disable_existing_loggers is true, any existing loggers that are not children of named loggers will be disabled. cheers Reimar