Fixed typo in windib audio.

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%402082

src/audio/windib/SDL_dibaudio.c

@@ -259,7 +259,7 @@ DIB_OpenAudio(_THIS, SDL_AudioSpec * spec)
         spec->format = AUDIO_S16;
         waveformat.wBitsPerSample = 16;
         break;
-    case 16:
+    case 32:
         /* Signed 32 bit audio data */
         spec->format = AUDIO_S32;
         waveformat.wBitsPerSample = 32;