[PATCH 1/1] include: Add missing default value in IXAudio2.

[Biswapriyo Nath]

From: Biswapriyo Nath

This was removed in 14c44d0b0a2fc0ead5bc75615864ff850a44c4d5 commit.
---
 include/xaudio2.idl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/xaudio2.idl b/include/xaudio2.idl
index d0e781fe1c6..277fc450469 100644
--- a/include/xaudio2.idl
+++ b/include/xaudio2.idl
@@ -555,7 +555,7 @@ interface IXAudio2 : IUnknown
 #endif
         [in, defaultvalue(NULL)] const XAUDIO2_EFFECT_CHAIN* pEffectChain
 #if XAUDIO2_VER >= 8
-        , AUDIO_STREAM_CATEGORY category
+        , [in, defaultvalue(AudioCategory_GameEffects)] AUDIO_STREAM_CATEGORY category
 #endif
         );