get format argument from request

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@12503 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5OOo/OOoTemplate.py

@@ -456,7 +456,7 @@ xmlns:config="http://openoffice.org/2001/config" office:version="1.0">
       # Convert if necessary
       opts = extra_context.get("options", None)
       if opts is not None:
-        format=opts.get("format",None)
+        format = opts.get('format', request.get('format', None))
         if format is not None:
           return self._asFormat(ooo, format, request)