old_contents: import sys
  import os
  
  sys.path.insert(0, os.path.realpath(__file__))
  from hxl_proxy import app as application
  
new_contents: """
  Apache WSGI file for launching HXL Proxy
  
  David Megginson
  February 2015
  
  License: Public Domain
  Documentation: http://hxlstandard.org
  
  Assumes that hxl_proxy is installed as an app. If running locally, add
  the directory containing the hxl_proxy module to sys.path.
  """
  
  from hxl_proxy import app as application
  
subject: Update WSGI file to use as app.