qr-code generator in Golang

gistfile1.txt

package main

import "fmt"
import "os"
import qrcode "github.com/skip2/go-qrcode"

func main() {

        // if not display usage
        if len(os.Args) > 1 {
                text := os.Args[1]
                err := qrcode.WriteFile(text, qrcode.Medium, 256, "qr.png")
                fmt.Println(err)
        } else {
                fmt.Println("usage: \n ./create-qr TEXT\n will generate qr.png based on input")
        }

}