>.  The <tt>contentData</tt> portion of a <tt>FCGI_GET_VALUES</tt>
record contains a sequence of name-value pairs with empty values.<p>

The application responds by sending a record
<tt>{FCGI_GET_VALUES_RESULT, 0, ...}</tt> with the values supplied.  If the
application doesn't understand a variable name that was
included in the query, it omits that name from the
response.<p>

<tt>FCGI_GET_VALUES</tt> is designed to allow an open-ended
set of variables.  The initial set provides information to help
the serve