Cosmetics: DirectX now sets maximum volume without returning an error.

Before it returned -1 when volume was set to 100% so OSD never showed the
'Volume: 100%' message.

Regards,
Mario
Signed-off-by: Rafaël Carré <funman@videolan.org>

modules/audio_output/directx.c

@@ -537,7 +537,7 @@ static int VolumeSet( audio_output_t *p_aout, float vol )
 
     /* Clamp to allowed DirectSound range */
     static_assert( DSBVOLUME_MIN < DSBVOLUME_MAX, "DSBVOLUME_* confused" );
-    if( mb >= DSBVOLUME_MAX )
+    if( mb > DSBVOLUME_MAX )
     {
         mb = DSBVOLUME_MAX;
         ret = -1;