Update merge.rs

datafusion/physical-plan/src/sorts/merge.rs

@@ -445,8 +445,8 @@ impl<C: CursorValues> SortPreservingMergeStream<C> {
                 self.update_winner(cmp_node, winner, challenger);
             }
         } else if challenger < *winner {
-            // If the winner doesn't surivie in the final match, it means the value has changed,
-            // The polls count are outdated (because the value advanced) but not yet cleanup at this point.
+            // If the winner doesn't survive in the final match, it means the value has changed.
+            // The polls count are outdated (because the value advanced) but not yet cleaned-up at this point.
             // Given the value is equal, we choose the smaller index if the value is the same.
             self.update_winner(cmp_node, winner, challenger);
         }