Small fix for mod_env.html: The module was documented as to be _not_

compiled into Apache per default, although it _IS_ compiled into
Apache per default.

Submitted by: Sim Harbert <sim@mindspring.com>
Reviewed by: Ralf S. Engelschall
PR: 3572


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@82576 13f79535-47bb-0310-9956-ffa450edef68