Rename some references in the docs from the old "OSF1" term to the official

term "Digital UNIX".

Submitted by: Robert Urban <urban@rto.dec.com>


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@82026 13f79535-47bb-0310-9956-ffa450edef68