allow use of < and > in name attribute of navigation.xml

git-svn-id: https://svn.apache.org/repos/asf/maven/maven-1/plugins/trunk@113218 13f79535-47bb-0310-9956-ffa450edef68

xdoc/src/plugin-resources/site.jsl

@@ -357,9 +357,9 @@
 
   <jsl:template match="item" trim="false">
     <x:set var="item" select="."/>
-    <j:set var="_name"><x:expr select="@name"/></j:set>
-    <j:set var="_link"><x:expr select="@href"/></j:set>
-    <j:set var="_img"><x:expr select="@img"/></j:set>
+    <x:set var="_name" select="string(@name)"/>
+    <x:set var="_link" select="string(@href)"/>
+    <x:set var="_img" select="string(@img)"/>
 
     <div>
       <small>