rt, it sends either no <tt>FCGI_STDERR</tt> records or
one zero-length <tt>FCGI_STDERR</tt> record.<p>

When a role protocol calls for transmitting a stream other than
<tt>FCGI_STDERR</tt>, at least one record of the stream type is always
transmitted, even if the stream is empty.<p>

Again in the interests of reliable protocols and simplified application
programming, role protocols are designed to be <i>nearly
request-response</i>.  In a truly request-response protocol, the
application receives all of its i