oledlg: Declare varargs functions as WINAPIV instead of cdecl.

dlls/oledlg/oledlg_main.c

diff --git a/dlls/oledlg/oledlg_main.c b/dlls/oledlg/oledlg_main.c
index 4e373f8..c7daf5f 100644
--- a/dlls/oledlg/oledlg_main.c
+++ b/dlls/oledlg/oledlg_main.c
@@ -245,7 +245,7 @@
 /***********************************************************************
  *           OleUIPromptUserA (OLEDLG.10)
  */
-INT __cdecl OleUIPromptUserA(
+INT WINAPIV OleUIPromptUserA(
   INT nTemplate, HWND hwndParent, ...)
 {
   FIXME("(%d, %p, ...): stub\n", nTemplate, hwndParent);
@@ -256,7 +256,7 @@
 /***********************************************************************
  *           OleUIPromptUserW (OLEDLG.13)
  */
-INT __cdecl OleUIPromptUserW(
+INT WINAPIV OleUIPromptUserW(
   INT nTemplate, HWND hwndParent, ...)
 {
   FIXME("(%d, %p, ...): stub\n", nTemplate, hwndParent);