Linux 2.0.x RLIMIT_DATA doesn't do what's expected, RLIMIT_AS does. Deal

with it.

PR:		1816
Submitted by:	Enrik Berkhan <enrik@inka.de>
Reviewed by:	Dean Gaudet


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@80243 13f79535-47bb-0310-9956-ffa450edef68