Merge r1555116 from trunk:

emphasize that this is mostly just AAA checks and not the status
code of the handler. PR21828 and various dups.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@1555120 13f79535-47bb-0310-9956-ffa450edef68

diff --git a/docs/manual/mod/mod_rewrite.xml b/docs/manual/mod/mod_rewrite.xml
index 5015dbb6e451a02119fb0b3ebc573855b31b16e2..3d1e6ca457d68e1da4f2c660daf7c3ec850b8040 100644 (file)
--- a/docs/manual/mod/mod_rewrite.xml
+++ b/docs/manual/mod/mod_rewrite.xml
@@ -1010,13 +1010,18 @@ RewriteRule ^index\.html$  welcome.html
             subrequest to do the check, so use it with care -
             it can impact your server's performance!</li>
 
-            <li>'<strong>-U</strong>' (is existing URL, via
+            <li><p>'<strong>-U</strong>' (is existing URL, via
             subrequest)<br />
             Checks whether or not <em>TestString</em> is a valid URL,
             accessible via all the server's currently-configured
             access controls for that path. This uses an internal
             subrequest to do the check, so use it with care - 
-            it can impact your server's performance!</li>
+            it can impact your server's performance!</p>
+            <p> This flag <em>only</em> returns information about things
+            like access control, authentication, and authorization.  This flag
+            <em>does not</em> return information about the status code the 
+            configured handler (static file, CGI, proxy, etc.) would have 
+            returned.</p> </li>
           </ul>
 
 <note><title>Note:</title>