[Bug 26101] riched20/editor tests show a ton of valgrind warnings

https://bugs.winehq.org/show_bug.cgi?id=26101

--- Comment #6 from Austin English  ---
(In reply to Jactry Zeng from comment #5)
> Created attachment 49366 [details]
> possible fix
>
> Hi Austin, Dan,
> (In reply to Austin English from comment #0)
> > Created attachment 33289 [details]
> > valgrind log
>
> Here is a possible fix.

The patch helps, though there are still the uninitialized values in
test_EM_FINDWORDBREAK_A from comment #1 (that would be a separate bug, of
course).