Merge r507346 from trunk:

Use the specified IPv4 prefix for documentation and examples (192.0.2.0/24)
from RFC3330 rather than non-reserved public internet addresses and some
RFC1918 addresses.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@654548 13f79535-47bb-0310-9956-ffa450edef68