[misc] Fixed leftover code

xwiki-platform-core/xwiki-platform-watchlist/xwiki-platform-watchlist-ui/src/main/resources/XWiki/WatchListRss.xml

@@ -107,8 +107,8 @@
 #else
 $!response.setContentType("application/text+xml")##
 #set($feed = $xwiki.watchlist.getFeed(20))##
-#set($discard = $feed.set)
-$xwiki.feed.getFeedOutput($xwiki.watchlist.getFeed(20), "rss_2.0")##
+#set($discard = $feed.setPublishedDate($util.date))
+$xwiki.feed.getFeedOutput($feed, "rss_2.0")##
 #end
 {{/velocity}}</content>
 </xwikidoc>