writeTo(out) {
			out.writeBytesOffset(this.buf, 0, this.count);
		}
Writes the complete contents of this byte array output stream to
the specified output stream argument, as if by calling the output
stream's write method using <code>out.write(buf, 0, count)</code>.

@param      out   the output stream to which to write the data.
@exception  IOException  if an I/O error occurs.