Replace nonsense statement in the backport proposal (the backport has
  merit, but for an altogether different reason).

  http2-wg has no impact on HTTP/1.1 protocol, and Upgrade: request and
  response in this case is defined by the HTTP/1.1 RFC, alone.  An Upgrade
  header in an HTTP/2.0 stream is entirely under the scope of HTTP/2.0 RFC.



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1741098 13f79535-47bb-0310-9956-ffa450edef68