go1.16 (#14783)

vendor/github.com/go-redis/redis/v8/internal/rand/rand.go

@@ -43,3 +43,8 @@ func (s *source) Seed(seed int64) {
 	s.src.Seed(seed)
 	s.mu.Unlock()
 }
+
+// Shuffle pseudo-randomizes the order of elements.
+// n is the number of elements.
+// swap swaps the elements with indexes i and j.
+func Shuffle(n int, swap func(i, j int)) { pseudo.Shuffle(n, swap) }