Use HTTPD_ROOT instead of /usr/local/apache; the intent is obviously to

default to having them all below HTTPD_ROOT, so we may as well just do that.

PR: 1894
Obtained from:
Submitted by:   Jason Riedy <ejr@cise.ufl.edu>, Marc Slemko
Reviewed by:


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@80475 13f79535-47bb-0310-9956-ffa450edef68