code: protected byte[] getSpecial( final int tag, final int count) {
  		final ByteBuffer buffer = ByteBuffer.allocate( 16);
  		buffer.putInt( tag);
  		buffer.putInt( 0x00000007);
  		buffer.putInt( count * -16);
  		buffer.putInt( 0x00000010);
  		return buffer.array();
  	}
docs: Returns the special header expected by RPM for
  a particular header.
  @param tag the tag to get
  @param count the number to get
  @return the header bytes