guess_extension can return None, make sure we do not include 'None' in the

filename in that case


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@32416 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5OOo/OOoTemplate.py

@@ -568,7 +568,7 @@ class OOoTemplate(ZopePageTemplate):
           '%s; charset=utf-8' % self.content_type)
       request.RESPONSE.setHeader('Content-disposition',
           'inline;filename="%s%s"' % (self._getFileName(),
-                                      guess_extension(self.content_type)))
+                                      guess_extension(self.content_type) or ''))
     
     if DevelopmentMode:
       # Validate XML in development mode