Merge r1231446from trunk:

Fix the request/response header error

Submitted by: INOUE Seiichiro <inoue ariel-networks.com>

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1231453 13f79535-47bb-0310-9956-ffa450edef68