Copy Options warning present in trunk and 2.0 docs to 2.2

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@559809 13f79535-47bb-0310-9956-ffa450edef68

diff --git a/docs/manual/mod/core.xml b/docs/manual/mod/core.xml
index 3753c882ca6bd839f7ffd94a88d17e63f992d636..2e243ca0cc070fba6cc380457bd1809541ea0925 100644 (file)
--- a/docs/manual/mod/core.xml
+++ b/docs/manual/mod/core.xml
@@ -2331,6 +2331,12 @@ directory</description>
     <code>-</code> are removed from the options currently in
     force. </p>
 
+    <note type="warning"><title>Warning</title>
+    <p>Mixing <directive>Options</directive> with a <code>+</code> or
+    <code>-</code> with those without is not valid syntax, and is likely
+    to cause unexpected results.</p>
+    </note>
+
     <p>For example, without any <code>+</code> and <code>-</code> symbols:</p>
 
     <example>