Ticket #2256: changed focused button in editor quit dialog.

Now the focused button in editor quit dialog is "Cancel quit" as was
before 4.7.3 release. Button order stay as in 4.7.3 release.
Likewise for hex editor.

Signed-off-by: Andrew Borodin <aborodin@vmail.ru>

src/editor/editcmd.c

@@ -2067,6 +2067,7 @@ edit_ok_to_exit (WEdit * edit)
         if (!edit_check_newline (edit))
             return FALSE;
 
+        query_set_sel (2);
         act = edit_query_dialog3 (_("Quit"), _("File was modified. Save with exit?"),
                                   _("&Yes"), _("&No"), _("&Cancel quit"));
     }

src/viewer/lib.c

@@ -149,6 +149,7 @@ mcview_ok_to_quit (mcview_t * view)
 
     if (!midnight_shutdown)
     {
+        query_set_sel (2);
         r = query_dialog (_("Quit"),
                           _("File was modified. Save with exit?"), D_NORMAL, 3,
                           _("&Yes"), _("&No"), _("&Cancel quit"));