Fix context description of RedirectMatch. It's also

useable in per-dir context - similar to Redirect.

Submitted by: Klaus Johannes Rusch <KlausRusch@atmedia.net>
PR: 4611


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@83409 13f79535-47bb-0310-9956-ffa450edef68