bug: test with device_id did not show results

Author: esdandreu

recorder/__main__.py

@@ -214,6 +214,7 @@ def test(
         config = Config({device_class: {device_id: device}})
         recorder = Recorder(config, output_folder)
         output_folder = recorder(seconds=5)
+        device_class.show_results(output_folder)
 
 
 def main():

recorder/config.py

@@ -56,7 +56,7 @@ def devices(
                         )
                 except Exception as e:
                     raise RuntimeError(
-                        f"Could not initialize {str(device_class)}{index} "
-                        f"with config:\n {yaml_dump(device_config)}\n {str(e)}"
+                        f"Could not initialize {str(device_class)} {index} "
+                        f"with config:\n{yaml_dump(device_config)}\n{str(e)}"
                         ) from e
         return devices