Execute tinc-down BEFORE tap device is closed. This is a. more symmetric

(tinc-up is started after tap device is opened) and b. is needed for
tun/tap device, where the interface does not exist anymore after the
device file is closed.

src/net.c

@@ -17,7 +17,7 @@
     along with this program; if not, write to the Free Software
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
-    $Id: net.c,v 1.35.4.116 2001/06/21 16:37:47 guus Exp $
+    $Id: net.c,v 1.35.4.117 2001/06/29 10:30:18 guus Exp $
 */
 
 #include "config.h"
@@ -1019,11 +1019,10 @@ cp
         myself = NULL;
       }
 
-  close(tap_fd);
-
-  /* Execute tinc-down script right after shutting down the interface */
   execute_script("tinc-down");
 
+  close(tap_fd);
+
   destroy_connection_tree();
 cp
   return;