code: public static Map<String, File> loadStringToFileMap(final File f) throws IOException {
      return loadStringToFileMap(Files.asCharSource(f, Charsets.UTF_8));
    }
docs: Reads an {@link Map} from a {@link File}, where each line is a key, a tab character
  ("\t"), and a value. Blank lines and lines beginning with "#" are ignored.