Documentation name fixes.

diff --git a/windows/dialog.c b/windows/dialog.c
index 27d8c77..3e4f768 100644
--- a/windows/dialog.c
+++ b/windows/dialog.c
@@ -1524,6 +1524,7 @@
 
 
 /***********************************************************************
+ *		IsDialogMessage  (USER32.@)
  *		IsDialogMessageA (USER32.@)
  */
 BOOL WINAPI IsDialogMessageA( HWND hwndDlg, LPMSG msg )