func init() {
	flag.StringVar(&httpAddr, "addr", DefaultHTTPAddr, "Set the HTTP bind address")
	flag.Usage = func() {
		fmt.Fprintf(os.Stderr, "Usage: %s [options]\n", os.Args[0])
		flag.PrintDefaults()
	}
}
init initializes this package.
package main
import (
	"flag"
	"fmt"
	"log"
	"os"
	"os/signal"
	"syscall"
	"github.com/otoolep/go-httpd/httpd"
	"github.com/otoolep/go-httpd/store"
)
const DefaultHTTPAddr = ":8080"
var httpAddr string