fix white space on comment caught by pre-commit

Author: joebaird

adafruit_pyportal/peripherals.py

@@ -160,8 +160,7 @@ def play_file(self, file_name, wait_to_finish=True):
         self._speaker_enable.value = False
 
     def stop_play(self):
-        """Stops playing a wav file.
-        """
+        """Stops playing a wav file."""
         if self.wavfile is not None:
             self.wavfile.close()
         self._speaker_enable.value = False