[DO NOT MERGE] Pr430 (#622)
[DO NOT MERGE] Pr430 (#622)

* force consistent line endings

replace config line-endings in generation function

remove extra blank line

restore blank line

* remove line ending inconsistencies

move line-ending sanitation to config.set_label (process boundary)

remove extra string replace

whitespace cleanup

missing return

don't remove beginning/trailing newlines

* config: flake8 fix

mesosphere/marathon-lb,vixns/marathon-lb,mesosphere/marathon-lb,vixns/marathon-lb,mesosphere/marathon-lb,vixns/marathon-lb