Append Text to File in Golang

package main

import (
    "fmt"
    "os"
)

func main() {

    file, err := os.OpenFile("data.txt", os.O_APPEND|os.O_WRONLY, 0666)
    if err != nil {
        fmt.Println(err)
    } else {
        fmt.Fprintln(file, "nilpointer.net")
        fmt.Fprintln(file, "golang")
        fmt.Fprintln(file, "php")
    }
    file.Close()

}