Python 3.7 upgrade and ref to trackservice update.

guru.py

-#!/usr/bin/python3.6
+#!/usr/bin/python3.7
 
 #
 #  engine
@@ -123,7 +123,7 @@ class Guru():
         self.parser.add_argument("-sd", "--shutdown", action="store_true", dest="shutdown", default=False, help="Shutting down aura server")
 
         # playlist in/output
-        self.parser.add_argument("-fnp", "--fetch-new-programmes",  action="store_true", dest="fetch_new_programme",   default=False, help="Fetch new programmes from calendarurl in comba.ini")
+        self.parser.add_argument("-fnp", "--fetch-new-programmes",  action="store_true", dest="fetch_new_programme",   default=False, help="Fetch new programmes from api_calendar_url in engine.ini")
         self.parser.add_argument("-pmq", "--print-message-queue",   action="store_true", dest="print_message_queue",   default=False, help="Prints message queue")
 
         # send a redis message
@@ -134,7 +134,7 @@ class Guru():
         self.parser.add_argument("-snf", "--set-next-file-for", action="store",      dest="set_file_for", default=False, metavar=("PLAYLISTTYPE", "FILE"), nargs=2, help="For which type you wanna SET a next audio file?")
         self.parser.add_argument("-np",  "--now-playing",       action="store_true", dest="now_playing",  default=False,                                            help="Which source is now playing")
         self.parser.add_argument("-ip",  "--init-player",       action="store_true", dest="init_player",  default=False,                                            help="Reset liquidsoap volume and mixer activations?")
-        self.parser.add_argument("-ts",  "--adapt-trackservice-title", action="store_true", dest="update_trackservice",  default=False,                                      help="Update the name of a track due to fallback")
+        self.parser.add_argument("-ts",  "--adapt-trackservice-title", action="store", dest="adapt_trackservice_title",  default=False, metavar="TITLE",            help="Update trackservice entry due to fallback")
 
         if len(sys.argv) == 1:
             raise ValueError("No Argument passed!")