https://git.ruby-lang.org/ruby.git/commit/?id=05c9dfe23a

From 05c9dfe23a7d1b970f5b62feeba3199413567fa5 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Thu, 16 Dec 2021 13:53:15 +0900
Subject: Suppress empty-body warning

---
 hash.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/hash.c b/hash.c
index b0ee2553566..deb5e77872f 100644
--- a/hash.c
+++ b/hash.c
@@ -6028,12 +6028,12 @@ env_none(VALUE _) https://github.com/ruby/ruby/blob/trunk/hash.c#L6028
 static int
 env_size_with_lock(void)
 {
-    int i;
+    int i = 0;
 
     ENV_LOCK();
     {
         char **env = GET_ENVIRON(environ);
-        for (i=0; env[i]; i++);
+        while (env[i]) i++;
         FREE_ENVIRON(environ);
     }
     ENV_UNLOCK();
-- 
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