show trace status on startup

radicale/server.py

@@ -340,6 +340,8 @@ def serve(configuration: config.Configuration,
             select_timeout = 1.0
         max_connections: int = configuration.get("server", "max_connections")
         logger.info("Radicale server ready")
+        logger.debug("TRACE: Radicale server ready ('logging/trace_on_debug' is active)")
+        logger.debug("TRACE/SERVER: Radicale server ready ('logging/trace_on_debug' is active - either with 'SERVER' or empty filter)")
         while True:
             rlist: List[socket.socket] = []
             # Wait for finished clients