From f3a679d845936742a7867c0d6b50aaab121ed3d0 Mon Sep 17 00:00:00 2001
From: itiB <is0312vx@ed.ritsumei.ac.jp>
Date: Thu, 7 Apr 2022 01:44:02 +0900
Subject: [PATCH] Add: Flush method.

---
 src/options/level_tuning.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/options/level_tuning.rs b/src/options/level_tuning.rs
index cc5e8adb..4809e0d2 100644
--- a/src/options/level_tuning.rs
+++ b/src/options/level_tuning.rs
@@ -83,6 +83,7 @@ impl LevelTuning {
                 };
 
                 file.write_all(content.as_bytes()).unwrap();
+                file.flush().unwrap();
                 println!(
                     "level: {} -> {}",
                     rule["level"].as_str().unwrap(),