add missing parse command

main.go

@@ -13,6 +13,7 @@ func main() {
 	baseDN := flag.String("baseDN", "OU=Users,DC=example,DC=com", "Base DN to use when attempting to bind to AD")
 	username := flag.String("username", "user", "Username to use when attempting to bind to AD")
 	password := flag.String("password", "pass", "Password to use when attempting to bind to AD")
+	flag.Parse()
 
 	config := &auth.Config{
 		Server:   *server,