audio: "SL" means "surround left" not "side left", etc.
diff --git a/src/audio/SDL_audiocvt.c b/src/audio/SDL_audiocvt.c
index 0c8757e..9927f6b 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
*