code: public static String prettyHexDump(final DirectBuffer buffer, final int offset, final int length)
      {
          return HexUtil.prettyHexDump(buffer, offset, length);
      }
docs: Returns a hexadecimal dump of the specified {@link DirectBuffer} that is easy to read by humans,
  starting at the given {@code offset} using the given {@code length}.
  
  @param buffer dumped buffer
  @param offset where should we start to print
  @param length how much should we print
  @return pretty hex dump in a string representation