Merge r1796538 from trunk:

ab: enable option processing for setting a custom
HTTP method also for non-SSL builds.

Submitted by: rjung
Reviewed by: rjung, covener, gsmith


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1796539 13f79535-47bb-0310-9956-ffa450edef68