CIDR addresses such as a.b.c.d/24 where d != 0 weren't handled

properly... mask off the "host" bits of the address.

PR:		4770
Submitted by:	"Paul J. Reder" <rederpj@raleigh.ibm.com>


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@83589 13f79535-47bb-0310-9956-ffa450edef68