SDL: audio: "SL" means "surround left" not "side left", etc.

SDL Commits
1 
From f06cc3e94533fb7c44096d1bf737ae78cb8ce5b4 Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <[EMAIL REDACTED]>
Date: Tue, 19 Jul 2022 22:03:56 -0400
Subject: [PATCH] audio: "SL" means "surround left" not "side left", etc.

---
 src/audio/SDL_audiocvt.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/audio/SDL_audiocvt.c b/src/audio/SDL_audiocvt.c
index 0c8757e5567..9927f6be58f 100644
--- a/src/audio/SDL_audiocvt.c
+++ b/src/audio/SDL_audiocvt.c
@@ -76,8 +76,8 @@
  * - FC=front center speaker
  * - BL=back left speaker
  * - BR=back right speaker
- * - SR=side right speaker
- * - SL=side left speaker
+ * - SR=surround right speaker
+ * - SL=surround left speaker
  * - BC=back center speaker
  * - LFE=low-frequency speaker
  *