Improved buffered output to the client by delaying the flush decision

until the BUFF code is actually about to read the next request.
This fixes a problem introduced in 1.2b5 with clients that send
an extra CRLF after a POST request.

Submitted by: Dean Gaudet
Reviewed by: Roy Fielding


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@77537 13f79535-47bb-0310-9956-ffa450edef68