Find and replace a character in a string in Go

gistfile1.go

 package main

 import (
    "fmt"
    "strings"
 )

 func main() {
    str := " This string has many many spaces that need to be replaced "

    fmt.Println(strings.Replace(str, " ", "", -1))


    str2 := " This string has much much spaces that need to be replaced "

    fmt.Println(strings.Replace(str2, "much", "many", 2))
 }