Fix parsing of Allow/Deny rules using IP addresses without a netmask;

issue is known to affect only big-endian 64-bit platforms; on affected
platforms such rules would never produce matches.

PR: 23850
Submitted by: Henning Brauer <henning@openbsd.org>


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@102879 13f79535-47bb-0310-9956-ffa450edef68