notepad: fix date format to match windows

[Austin English]

We were forcefully overriding it to give the DATE_LONGDATE format,
whereas windows uses DATE_SHORTDATE.

Partly fixes bug 18193.

-- 
-Austin
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diff --git a/programs/notepad/dialog.c b/programs/notepad/dialog.c
index 0595f69..d97e102 100644
--- a/programs/notepad/dialog.c
+++ b/programs/notepad/dialog.c
@@ -659,7 +659,7 @@ VOID DIALOG_EditTimeDate(VOID)
 
     SendMessage(Globals.hEdit, EM_REPLACESEL, TRUE, (LPARAM)spaceW);
 
-    GetDateFormat(LOCALE_USER_DEFAULT, DATE_LONGDATE, &st, NULL, szDate, MAX_STRING_LEN);
+    GetDateFormat(LOCALE_USER_DEFAULT, 0, &st, NULL, szDate, MAX_STRING_LEN);
     SendMessage(Globals.hEdit, EM_REPLACESEL, TRUE, (LPARAM)szDate);
 }