You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: getxlm.go
    path of file: ./repos/client/go/tools/getxlm
    
    the code of the file until where you have to start completion: package main

import (
	"crypto/rand"
	"flag"
	"fmt"
	"io"
	"log"
	"net/http"
	"os/exec"

	"github.com/buger/jsonparser"
)

var howMany int
var destination string
var bin string
var home string

func main() {
	flag.IntVar(&howMany, "n", 5, "number of accounts to create to fund base account")
	flag.StringVar(&destination, "d", "", "destination account")
	flag.StringVar(&bin, "bin", "/usr/local/bin/keybase", "keybase binary path")
	flag.StringVar(&home, "home", "/tmp", "home dir
    
func createStandardUser() (string, error) {
	logout()
	buf := make([]byte, 6)
	if _, err := rand.Read(buf); err != nil {
		return "", err
	}
	username := fmt.Sprintf("ad_%x", buf)
	cmd := exec.Command(bin, "-home", home, "signup", "-batch", "-username", username, "-passphrase", "00000000", "-no-email", "-invite-code", "202020202020202020202020")
	if out, err := cmd.CombinedOutput(); err != nil {
		fmt.Printf("signup error: %s\n", err)
		fmt.Printf("output: %s\n", string(out))
		return "", err
	}
	return username, nil
}