Shuffle

[robotamer]

Just found this package and think its great, thanks.
However Shuffle() returns always the same sequence.
Below is my test code.
I also included a shuffle of my own.

package main

import (
    "fmt"
    "github.com/feyeleanor/slices"
)

var is slices.ISlice

func main() {
    is.Append(4)
    is.Append(3)
    is.Append(1)
    is.Append(2)
    is.Append(3)
    slices.Sort(is)
    slices.Shuffle(is)
    fmt.Println(is)
}

import (
    "math/rand"
    "time"
)

func init() {
    rand.Seed(time.Now().UTC().UnixNano())
}

// Shuffles the string
func Shuffle(s string) string {
    l := len(s)
    b := []byte(s)
    for i := len(b) - 1; i != 0; i-- {
        r := rand.Intn(l)
        b[i], b[r] = b[r], b[i]
    }
    return string(b)
}