[#4508] Reposition the Retainer single month label.

app/views/deliverables/_finance_form.html.erb

@@ -1,7 +1,7 @@
 <% form.inputs :name => label, :class => "deliverable-finances #{fieldset_class}" do %>
 
   <li style="display:none;" id='retainer-finances-message'>
-    <%= content_tag(:p, l(:text_retainer_monthly_message)) %>
+    <%= content_tag(:label, l(:text_retainer_monthly_message)) %>
   </li>
 
   <li class="numeric optional">