the up-to-date checker currently depends on a properly configured cvs in path

that's totally uncool. Let make cvs the work on the fly:
- start adding $Revision$ keyword to english files


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@103421 13f79535-47bb-0310-9956-ffa450edef68