document @since for resources/@cache

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@806571 13f79535-47bb-0310-9956-ffa450edef68

docs/manual/CoreTypes/resources.html

@@ -372,7 +372,7 @@ Ant's "legacy" datatypes have been modified to behave as Resource Collections:
     </tr>
     <tr>
       <td valign="top">cache</td>
-      <td valign="top">Whether to cache results</td>
+      <td valign="top">Whether to cache results.  <em>since Ant 1.8.0</em></td>
       <td valign="top" align="center">No, default <i>false</i></td>
     </tr>
   </table>

src/main/org/apache/tools/ant/types/resources/Resources.java

@@ -132,6 +132,7 @@ public class Resources extends DataType implements ResourceCollection {
     /**
      * Set whether to cache collections.
      * @param b boolean cache flag.
+     * @since Ant 1.8.0
      */
     public synchronized void setCache(boolean b) {
         cache = b;