Read File Line by Line to String in Golang

package main

import (
    "fmt"
    "net/http"
    "os"
)

func main() {

    file, err := os.Open("data.txt")
    if err != nil {
        fmt.Println(err)
    } else {
        scanner := bufio.NewScanner(file)
        for scanner.Scan() {
            line := scanner.Text()
            fmt.Println(line)
        }
    }
    file.Close()

}