old_contents: import os
  import sys
  import traceback
  
  workers = 5
  worker_class = "eventlet"
  errorlog = "/home/vcap/logs/gunicorn_error.log"
  bind = "0.0.0.0:{}".format(os.getenv("PORT"))
  disable_redirect_access_to_syslog = True
  
  
  def worker_abort(worker):
      worker.log.info("worker received ABORT")
      for threadId, stack in sys._current_frames().items():
          worker.log.error(''.join(traceback.format_stack(stack)))
  
new_contents: import os
  import sys
  import traceback
  
  import gunicorn
  
  workers = 5
  worker_class = "eventlet"
  errorlog = "/home/vcap/logs/gunicorn_error.log"
  bind = "0.0.0.0:{}".format(os.getenv("PORT"))
  disable_redirect_access_to_syslog = True
  gunicorn.SERVER_SOFTWARE = 'None'
  
  
  def worker_abort(worker):
      worker.log.info("worker received ABORT")
      for threadId, stack in sys._current_frames().items():
          worker.log.error(''.join(traceback.format_stack(stack)))
  
subject: remove gunicorn server header