Bug fix: line discipline selection is not enabled until after ssh

authentication phase to stop user/password prompts behaving oddly

[originally from svn r614]

telnet.c

@@ -583,6 +583,12 @@ static char *telnet_init (HWND hwnd, char *host, int port, char **realhost) {
      * Set up SYNCH state.
      */
     in_synch = FALSE;
+
+    /*
+     * We have no pre-session phase.
+     */
+    begin_session();
+
     return NULL;
 }