code: static String getRealTaskLogFilePath(String location, LogName filter)
        throws IOException {
      return FileUtil.makeShellPath(new File(getBaseDir(location),
          filter.toString()));
    }
docs: Get the real task-log file-path
  
  @param location Location of the log-file. This should point to an
  attempt-directory.
  @param filter
  @return
  @throws IOException