Fix for Bug 89114, Checking in for Stephen Walker

r=javi, sr=blizzard

Make left arrow key work in Validation panel.

security/manager/pki/resources/content/PrefOverlay.xul

@@ -47,7 +47,7 @@
                   label="&certs.label;" />
       </treerow>
     </treeitem>
-    <treeitem id="validationItem" open="true" >
+    <treeitem id="validationItem" >
       <treerow>
         <treecell class="treecell-indent" url="chrome://pippki/content/pref-validation.xul"
                  label="&validation.label;" />