-Run this script as either 'auth.fcgi' or 'unauth.fcgi', to get
-the authenticated or unauthenticated site respectively.
-""" % sys.argv[0]
+Serve the authenticated site with 'auth' or under 'auth.fcgi',
+and the unauthenticated site with 'unauth' or under 'unauth.fcgi'.
+""" % (sys.argv[0], argv0_dir, argv0_dir)