Use two spaces for indentation in .travis.yml
Use two spaces for indentation in .travis.yml

newsboat/newsboat,newsboat/newsboat,der-lyse/newsboat,x4121/newsbeuter,der-lyse/newsboat,der-lyse/newsboat,der-lyse/newsboat,x4121/newsbeuter,newsboat/newsboat,newsboat/newsboat,der-lyse/newsboat,newsboat/newsboat,newsboat/newsboat,der-lyse/newsboat,der-lyse/newsboat,x4121/newsbeuter,newsboat/newsboat,x4121/newsbeuter,newsboat/newsboat,der-lyse/newsboat