bug when nothing found

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/correg@591 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
up

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/correg@592 edb9625f-4e0d-4859-8d74-9fd3b1da38cb