Added space before colon

Signed-off-by: Andreas Florath <[email protected]>

src/PIL/ImageStat.py

@@ -67,7 +67,7 @@ def minmax(histogram):
     def _getcount(self):
         """Get total number of pixels in each layer"""
 
-        return [sum(self.h[i: i + 256]) for i in range(0, len(self.h), 256)]
+        return [sum(self.h[i : i + 256]) for i in range(0, len(self.h), 256)]
 
     def _getsum(self):
         """Get sum of all pixels in each layer"""