Add missing /
Avoids potential problem of it not seeing an existing cache, depending on the CWD on the cache drive at the point the target is running (which could be anything really).
<?xml version="1.0" encoding="UTF8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Frameset//EN">
<html>
<head>
<title>Ant Tasks Documentation </title>
</head>
<frameset cols="30,70">
<frameset rows="20,80">
<frame name="libindex" src="libindex.html"/>
<frame name="taskindex" src="index.all.html"/>
</frameset>
<frame name="task" src="overview.html" />
</frameset>
</html>