code: public Dbi<T> openDbi(final String name, final DbiFlags... flags) {
      final byte[] nameBytes = name == null ? null : name.getBytes(UTF_8);
      return openDbi(nameBytes, flags);
    }
docs: Convenience method that opens a {@link Dbi} with a UTF-8 database name.
  
  @param name  name of the database (or null if no name is required)
  @param flags to open the database with
  @return a database that is ready to use