Commit promoted backport of PR 46066.

  *) Set Listen protocol to "https" if port is set to 443 and no proto is specified
     (as documented but not implemented). PR 46066  [Dan Poirier <poirier pobox.com>]


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@727769 13f79535-47bb-0310-9956-ffa450edef68