[PATCH 2/4] user32/listbox: Fix redraw after LB_SETCOUNT message.

[Akihiro Sagawa]

3ef790b9680cbf38fc93b4902e3ca6c9f57c5422 accidentally dropped updating
LBS_DISPLAYCHANGED flag that had been done in LISTBOX_InvalidateItems()
if the count value was changed.
In fact, the newly added test shows LB_SETCOUNT message always causes
WM_DRAWITEM requests regardless of the count value.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=51591
Signed-off-by: Akihiro Sagawa <sagawa.aki(a)gmail.com>
---
 dlls/user32/listbox.c       | 2 ++
 dlls/user32/tests/listbox.c | 1 -
 2 files changed, 2 insertions(+), 1 deletion(-)