code: @Cmd
  	public void load(final String fileName, final boolean preserveExistingProps) {
  		config.load(fileName, preserveExistingProps);
  		String scriptDir = getScriptDir();
  		if (scriptDir != null) {
  			config.put(JFunkConstants.SCRIPT_DIR, scriptDir);
  			config.put(JFunkConstants.SCRIPT_NAME, script.getName());
  		}
  		config.put(JFunkConstants.THREAD_ID, Thread.currentThread().getName());
  	}
docs: Loads the properties file for the test. This file may reference further configuration files,
  which are searched relatively to the configuration directory. These extra files must have
  keys starting with {@code system.properties.}.
  
  @param fileName
  the name of the properties file, relative to jFunk's configuration directory
  @param preserveExistingProps
  if {@code true}, already existing properties are preserved