[Bug 36188] valgrind shows an invalid free for comctl32/tests/listview.c

https://bugs.winehq.org/show_bug.cgi?id=36188

--- Comment #2 from Austin English  ---
(In reply to Sebastian Lackner from comment #1)
> Created attachment 48852 [details]
> comctl32: Allocate new memory in notify_forward_header() to avoid Free() on
> wrong pointer.
>
> Does this help? It doesn't really make the code look better, but ... ;)

Works, thanks.