[style] Remove whitespace (E211)

speech_recognition/__init__.py

@@ -1439,7 +1439,7 @@ def recognize_vosk(self, audio_data, language='en'):
  if not hasattr(self, 'vosk_model'):
  if not os.path.exists("model"):
  return "Please download the model from https://github.com/alphacep/vosk-api/blob/master/doc/models.md and unpack as 'model' in the current folder."
- exit (1)
+ exit(1)
  self.vosk_model = Model("model")
 
  rec = KaldiRecognizer(self.vosk_model, 16000)