Fix a missing /

git-svn-id: https://redmine.imt-atlantique.fr/svn/xaal/code/Python/branches/fork@1747 b32b6428-25c9-4566-ad07-03861ab6144f

apps/dashboard/xaal/dashboard/templates/devices.mako

@@ -12,7 +12,7 @@
     % if 'info' in dev.description.keys():
        <td>${dev.description['info']}</td>
        % else:
-    <td><td>
+    <td>--</td>
     %endif
     <td>${dev.attributes}</td>
   </tr>