Merge r1903838 from trunk:

Merge r1903838 from trunk:

emphasize a few things about authz_host

- "domain name" is not a good contrast for hostname unqualified, use "partial" as used earlier in the doc
- mention that DNS resolution [of the require line arguments] is done at runtime not startup. This may be
  obvious to developers when you see it uses an ap_expr but the question was specifically asked on IRC.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1903839 13f79535-47bb-0310-9956-ffa450edef68