Make fastlint even faster
    
    - Check pycodestyle before pylint. pycodestyle takes seconds while
      pylint can easily take half a minute or more.
    - Fix exit, needs two $
    - Add some newlines to make output more readable
    
    Signed-off-by: Christian Heimes <cheimes@redhat.com>
    Reviewed-By: Tibor Dudlak <tdudlak@redhat.com>