We must translate whole number of records message rather than just "records" part as in some languages "123 records" can be translated as "records 123". Do same for "selected" part.
Small optimization.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@38254 20353a03-c40f-0410-a6d1-a30d3c3de9de