print attribute path in logs

ml/thing.py

@@ -491,7 +491,7 @@ def on_get_value_request(self, msg):
         attribute_path = msg.get("attributePath")
         reply_msg_uuid = "s3i:" + str(uuid.uuid4())
         try:
-            __log = "[S3I]: Search the given attribute path: "
+            __log = "[S3I]: Search the given attribute path: {}".format(attribute_path)
             APP_LOGGER.info(__log)
             value = self._uriToData(attribute_path)
         except KeyError: