Fix syntax error.

git-svn-id: https://svn.apache.org/repos/asf/maven/plugins/trunk@1505581 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/src/site/fml/faq.fml b/src/site/fml/faq.fml
index 1cad04e..614c891 100644
--- a/src/site/fml/faq.fml
+++ b/src/site/fml/faq.fml
@@ -128,7 +128,7 @@
           <code>&lt;systemProperties&gt;</code> element of this plugin's
           &lt;configuration&gt; element.
 <source>
-      <plugin>
+<![CDATA[      <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-changelog-plugin</artifactId>
         <configuration>
@@ -139,7 +139,7 @@
             </property>
           </systemProperties>
         </configuration>
-      </plugin>
+      </plugin>]]>
 </source>
         </p>
       </answer>