In found text, if no search string was given, show text content (not...

In found text, if no search string was given, show text content (not searchable text). Looks much cleaner.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@12484 20353a03-c40f-0410-a6d1-a30d3c3de9de