put $robots back into user_agents.php
diff --git a/user_guide/changelog.html b/user_guide/changelog.html
index a8954d9..e2ba8f6 100644
--- a/user_guide/changelog.html
+++ b/user_guide/changelog.html
@@ -81,6 +81,7 @@
<ul>
<li>Fixed bug in xss_clean() that could remove some desirable tag attributes.</li>
<li>Fixed assorted user guide typos or examples (#4840, #4862, #4864, #4899).</li>
+ <li>Fixed an edit from 1.6.3 that made the $robots array in user_agents.php go poof.</li>
</ul>
<h2>Version 1.6.3</h2>