old_contents: #!/usr/bin/python
  
  import os
  import subprocess
  
  # Check if a stale pid file exists
  if os.path.exists("/var/log/nginx.pid"):
      os.remove("/var/log/nginx.pid")
  
  if os.environ["TLS_FLAVOR"] in [ "letsencrypt","mail-letsencrypt" ]:
      subprocess.Popen(["/letsencrypt.py"])
  
  subprocess.call(["/config.py"])
  os.execv("/usr/sbin/nginx", ["nginx", "-g", "daemon off;"])
  
new_contents: #!/usr/bin/python
  
  import os
  import subprocess
  
  # Check if a stale pid file exists
  if os.path.exists("/var/run/nginx.pid"):
      os.remove("/var/run/nginx.pid")
  
  if os.environ["TLS_FLAVOR"] in [ "letsencrypt","mail-letsencrypt" ]:
      subprocess.Popen(["/letsencrypt.py"])
  
  subprocess.call(["/config.py"])
  os.execv("/usr/sbin/nginx", ["nginx", "-g", "daemon off;"])
  
subject: Update start.py