fix

Author: 6543

src/slices/slices.go

@@ -502,9 +502,7 @@ func Concat[S ~[]E, E any](dst S, slices ...S) S {
 	}
 	dst = Grow(dst, len(dst)+sl)
 	for _, s := range slices {
-		if sLen := len(s); sLen != 0 {
-			dst = append(dst, s...)
-		}
+		dst = append(dst, s...)
 	}
 	return dst
 }

src/slices/slices_test.go

@@ -1069,7 +1069,7 @@ func TestConcat(t *testing.T) {
 
 	s3 := []bool{false, true}
 	s4 := Concat(s3, nil, []bool{true})
-	if want := []bool{false, true, true}; !Equal(s2, want) {
-		t.Errorf("want %v, got %v", want, s2)
+	if want := []bool{false, true, true}; !Equal(s4, want) {
+		t.Errorf("want %v, got %v", want, s4)
 	}
 }