Backports: r1683123

Submitted by: ylavic
core: Avoid a possible truncation of the faulty header included in the
HTML response when LimitRequestFieldSize is reached.




git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x-merge-http-strict@1775769 13f79535-47bb-0310-9956-ffa450edef68