Don't ask for VS command for some Yaeus rigs -- unnecessary warning occurs

rigs/yaesu/newcat.c

@@ -955,7 +955,7 @@ int newcat_set_freq(RIG *rig, vfo_t vfo, freq_t freq)
             }
 
             // we need to change vfos, BS, and change back
-            if (newcat_valid_command(rig, "VS"))
+            if (!is_ft991 && !is_ft891 newcat_valid_command(rig, "VS"))
             {
             SNPRINTF(priv->cmd_str, sizeof(priv->cmd_str), "VS%d;BS%02d%c",
                      vfo1, newcat_band_index(freq), cat_term);