SDL: audio: Load .WAV files with format->blockalign==0.

SDL Commits
1 
From 2e646c7141b3009628abda2a964ba5f9d1702e1a Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <[EMAIL REDACTED]>
Date: Wed, 17 May 2023 20:06:58 -0400
Subject: [PATCH] audio: Load .WAV files with format->blockalign==0.

In theory this is illegal, but legit wavefiles in the field do it, and
it's easy to bump it to 1 for general purposes.

Formats with more specific alignment requirements already check for them
separately.

Fixes #7714.
---
 src/audio/SDL_wave.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/audio/SDL_wave.c b/src/audio/SDL_wave.c
index dc5baed40ec4..fb5e91ff4e9b 100644
--- a/src/audio/SDL_wave.c
+++ b/src/audio/SDL_wave.c
@@ -1709,7 +1709,7 @@ static int WaveCheckFormat(WaveFile *file, size_t datalength)
 
         /* All supported formats must have a proper block size. */
         if (format->blockalign == 0) {
-            return SDL_SetError("Invalid block alignment");
+            format->blockalign = 1;  /* force it to 1 if it was unset. */
         }
 
         /* If the fact chunk is valid and the appropriate hint is set, the