SDL_mixer: Use the standard loop initialization pattern

SDL Commits
1 
From c0f64fc0b26af7fbff2e581ccd86d6a2895b4a9a Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Fri, 27 May 2022 16:49:49 -0700
Subject: [PATCH] Use the standard loop initialization pattern

---
 src/music.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/music.c b/src/music.c
index fa6d73ed..8ec27ff9 100644
--- a/src/music.c
+++ b/src/music.c
@@ -92,8 +92,9 @@ void meta_tags_init(Mix_MusicMetaTags *tags)
 
 void meta_tags_clear(Mix_MusicMetaTags *tags)
 {
-    size_t i = 0;
-    for ( ; i < MIX_META_LAST; i++) {
+    size_t i;
+
+    for (i = 0; i < MIX_META_LAST; i++) {
         if (tags->tags[i]) {
             SDL_free(tags->tags[i]);
             tags->tags[i] = NULL;