Ticket #2611: FISH: broken panels drawing after entering password

Steps to reproduce:
 * run ssh daemon on your host;
 * run mc;
 * type cd sh://127.0.0.1;
 * type your password;
 * just one panel was shown, after pressing ctrl+r second panel will shown as well.

Signed-off-by: Slava Zanko <slavazanko@gmail.com>

src/execute.c

@@ -260,6 +260,7 @@ post_exec (void)
 {
     edition_post_exec ();
     use_dash (TRUE);
+    repaint_screen ();
 }
 
 /* --------------------------------------------------------------------------------------------- */