PR: 23149 - fixed typo. I thought I'd contribute something! :)

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@275233 13f79535-47bb-0310-9956-ffa450edef68

docs/manual/OptionalTasks/propertyfile.html

@@ -152,7 +152,7 @@ The slashes conform to the expectations of the Properties class.  The file will
 
 <blockquote><pre>&lt;propertyfile
     file=&quot;my.properties&quot;
-    comment&quot;My properties&quot;&gt;
+    comment=&quot;My properties&quot;&gt;
   &lt;entry  key=&quot;akey&quot; value=&quot;avalue&quot;/&gt;
   &lt;entry  key=&quot;adate&quot; type=&quot;date&quot; value=&quot;now&quot;/&gt;
   &lt;entry  key=&quot;anint&quot; type=&quot;int&quot; operation=&quot;+&quot;/&gt;