patch 9.1.1677: wrong ifdef in message.c

Problem:  wrong ifdef in message.c
Solution: change it to #ifndef MSWIN (Damien Lejay)

The extra newline on screen switch is needed for all TTY/termcap
backends (Unix, VMS, others).

Only Windows uses a different console API.
Better use #ifndef MSWIN to express the real intent.

closes: #18076

Signed-off-by: Damien Lejay <damien@lejay.be>
Signed-off-by: Christian Brabandt <cb@256bit.org>

src/message.c

@@ -1457,9 +1457,10 @@ wait_return(int redraw)
     setmouse();
     msg_check();
 
-#if defined(UNIX) || defined(VMS)
+#ifndef MSWIN
     /*
-     * When switching screens, we need to output an extra newline on exit.
+     * On TTY-style terminals (all but Windows), an extra newline is
+     * needed when switching screens on exit.
      */
     if (swapping_screen() && !termcap_active)
 	newline_on_exit = TRUE;

src/version.c

@@ -724,6 +724,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1677,
 /**/
     1676,
 /**/