Solution for #83 learngo

todo.go

package main

import (
    "fmt"
    "io/ioutil"
    "strings"
    "log"
)

func main() {
    in, err := ioutil.ReadFile("todo.sample")
    if err != nil {
        log.Fatal("Couldn't open todo.sample", err)
    }
    line := strings.Split(string(in), "\n")
    for i := 0; i < len(line); i++ {
        fmt.Printf("%d %s\n", i, line[i])
    }
}