gameux/tests: initialize a variable (valgrind)

[Austin English]

Pointed out by Vincent Povirk.

Fixes part of http://bugs.winehq.org/show_bug.cgi?id=26113

-- 
-Austin
-------------- next part --------------
diff --git a/dlls/gameux/gamestatistics.c b/dlls/gameux/gamestatistics.c
index b0e7674..c474630 100644
--- a/dlls/gameux/gamestatistics.c
+++ b/dlls/gameux/gamestatistics.c
@@ -998,7 +998,7 @@ HRESULT create_IGameStatistics(GameStatisticsImpl** ppStats)
 {
     TRACE("(%p)\n", ppStats);
 
-    *ppStats = HeapAlloc( GetProcessHeap(), 0, sizeof(**ppStats));
+    *ppStats = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(**ppStats));
     if(!(*ppStats))
         return E_OUTOFMEMORY;