Nuke trailing white space.

src/plone/recipe/zope2instance/__init__.py

@@ -920,6 +920,6 @@ def render_file_storage(self, file_storage, blob_storage,
 <configure xmlns="http://namespaces.zope.org/zope"
            xmlns:plone="http://namespaces.plone.org/plone">
     <include package="plone.resource" file="meta.zcml"/>
-    <plone:static directory="%(directory)s"/> 
+    <plone:static directory="%(directory)s"/>
 </configure>
 """