Small error message fix.

point_post_crawler.go

@@ -18,7 +18,7 @@ func main() {
 	flag.Parse()
 
 	if len(login) < 1 || len(password) < 1 {
-		fmt.Printf("Login and password must be defined")
+		fmt.Println("Login and password must be defined")
 		return
 	}