Merge httpd-2.4.x-merge-http-strict branch r1767941 - r1775671

For complete patch evolution, see;

http://svn.apache.org/viewvc/httpd/httpd/branches/2.4.x-merge-http-strict/



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x-merge-http-strict@1775780 13f79535-47bb-0310-9956-ffa450edef68