Fix set XIT for newcat.c

https://github.com/Hamlib/Hamlib/issues/410

rigs/yaesu/newcat.c

@@ -3903,7 +3903,7 @@ int newcat_set_func(RIG *rig, vfo_t vfo, setting_t func, int status)
             return -RIG_ENAVAIL;
         }
 
-        snprintf(priv->cmd_str, sizeof(priv->cmd_str), "XT%d9%c", status ? 1 : 0,
+        snprintf(priv->cmd_str, sizeof(priv->cmd_str), "XT%d%c", status ? 1 : 0,
                  cat_term);
         break;