Fix pylint

Author: EAGrahamJr

adafruit_is31fl3731/__init__.py

@@ -201,8 +201,9 @@ def fade(self, fade_in=None, fade_out=None, pause=26):
         :param pause: breath register 2 pause value
         """
         if fade_in is None and fade_out is None:
-            return self._register(_CONFIG_BANK, _BREATH2_REGISTER, 0)
-        elif fade_in is None:
+            self._register(_CONFIG_BANK, _BREATH2_REGISTER, 0)
+            return 
+        if fade_in is None:
             fade_in = fade_out
         elif fade_out is None:
             fade_out = fade_in