Match what we do with the ssl_scache_dbm

chown junk, which we know is safe and works, and more directly
handles the issue with chown (agreed that a macro is needed
eventually)


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@99148 13f79535-47bb-0310-9956-ffa450edef68