APMrover2: simply invalid cmd msg

APMrover2/commands_logic.cpp

@@ -192,11 +192,7 @@ bool Rover::verify_command(const AP_Mission::Mission_Command& cmd)
 
         default:
             // error message
-            if (AP_Mission::is_nav_cmd(cmd)) {
-                gcs_send_text(MAV_SEVERITY_WARNING,"Verify nav. Invalid or no current nav cmd");
-            }else{
-                gcs_send_text(MAV_SEVERITY_WARNING,"Verify condition. Invalid or no current condition cmd");
-            }
+            gcs_send_text_fmt(MAV_SEVERITY_WARNING,"Skipping invalid cmd #%i",cmd.id);
             // return true if we do not recognize the command so that we move on to the next command
             return true;
 	}