}
}
}
-/* to get the correct picture for not-multiple-of-4 cases let us fill
- * each block from the bottom up, thus possibly overwriting the top line
+/* to get the correct picture for not-multiple-of-4 cases let us fill each
+ * block from the bottom up, thus possibly overwriting the bottommost line
* more than once but ending with the correct data in place
* (instead of in-loop checking) */