wininet: Don't use HEAP_ZERO_MEMORY on memory that's fully initialized.
diff --git a/dlls/wininet/http.c b/dlls/wininet/http.c
index 0a23979..5f27bd2 100644
--- a/dlls/wininet/http.c
+++ b/dlls/wininet/http.c
@@ -3293,7 +3293,7 @@
 
         len = origlen + valuelen + ((ch > 0) ? 2 : 0);
 
-        lpsztmp = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,  lphttpHdr->lpszValue, (len+1)*sizeof(WCHAR));
+        lpsztmp = HeapReAlloc(GetProcessHeap(), 0, lphttpHdr->lpszValue, (len+1)*sizeof(WCHAR));
         if (lpsztmp)
         {
             lphttpHdr->lpszValue = lpsztmp;