.

wcfs/δbtail_test.go

@@ -337,7 +337,7 @@ func IntSets(N int) chan []int {
 
 // intSets generates all sets of integers in range [lo,hi)
 func intSets(ch chan []int, lo, hi int) {
-	ch <- []int{}   // ø
+	ch <- nil // ø
 
 	if lo < hi {
 		for i := lo; i < hi; i++ {
@@ -363,7 +363,7 @@ func TestIntSets(t *testing.T) {
 			I(0), I(0,1), I(0,1,2), I(0,2),
 			I(1), I(1,2),
 			I(2),
-		}
+	}
 
 	if !reflect.DeepEqual(got, want) {
 		t.Fatalf("error:\ngot:  %v\nwant: %v", got, want)