Update error message

homeassistant/components/binary_sensor/rest.py

@@ -54,8 +54,8 @@ def setup_platform(hass, config, add_devices, discovery_info=None):
                       'Add http:// to your URL.')
         return False
     except requests.exceptions.ConnectionError:
-        _LOGGER.error('No route to resource/endpoint. '
-                      'Please check the URL in the configuration file.')
+        _LOGGER.error('No route to resource/endpoint: %s',
+                      resource)
         return False
 
     if use_get: