Changed logging level for problems disabling devices on shutdown.

Author: mickp

microscope/devices.py

@@ -256,7 +256,7 @@ def shutdown(self):
         try:
             self.disable()
         except Exception as e:
-            _logger.debug("Exception in disable() during shutdown: %s" % e)
+            _logger.warn("Exception in disable() during shutdown: %s" % e)
         _logger.info("Shutting down ... ... ...")
         self._on_shutdown()
         _logger.info("... ... ... ... shut down completed.")