Change --help text for new session dir

engine/start.py

@@ -51,7 +51,7 @@ parser.add_argument("--nsm-url", action='store', dest="url", help="Same as --url
 parser.add_argument("-l", "--load-session", action='store', dest="session", help="Session to open on startup, must exist. Overrides --continue")
 parser.add_argument("-c", "--continue", action='store_true', dest="continueLastSession", help="Autostart last active session.")
 parser.add_argument("-i", "--hide", action='store_true', dest="starthidden", help="Start GUI hidden in tray, only if tray available on system.")
-parser.add_argument("--session-root", action='store', dest="sessionRoot", help="Root directory of all sessions. Defaults to '$HOME/NSM Sessions'")
+parser.add_argument("--session-root", action='store', dest="sessionRoot", help="Root directory of all sessions. Defaults to $XDG_DATA_HOME/nsm/")
 
 args = parser.parse_args()