help message when in simulation mode

weed/shell/command_volume_delete_empty.go

@@ -39,6 +39,7 @@ func (c *commandVolumeDeleteEmpty) Do(args []string, commandEnv *CommandEnv, wri
 	if err = volDeleteCommand.Parse(args); err != nil {
 		return nil
 	}
+	infoAboutSimulationMode(writer, *applyBalancing, "-force")
 
 	if err = commandEnv.confirmIsLocked(args); err != nil {
 		return