escape brackets

[skip ci]


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1922995 13f79535-47bb-0310-9956-ffa450edef68

Author: covener

docs/manual/mod/mod_authnz_ldap.xml

@@ -548,7 +548,7 @@ Require ldap-filter "&(cell=*)(department=marketing)"
     LDAP server:</p>
 
 <highlight language="config">
-&lt;LocationMatch ^/dav/(?<SITENAME>[^/]+)/&gt;
+&lt;LocationMatch ^/dav/(?&lt;SITENAME&gt;[^/]+)/&gt;
 Require ldap-search (cn=%{ldap:%{unescape:%{env:MATCH_SITENAME}} Website)
 &lt;/LocationMatch&gt;
 </highlight>