git-svn-id: svn://svn.r-forge.r-project.org/svnroot/surveillance@726 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Modifies toLatex.Rd to explain the option "label"

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/surveillance@727 edb9625f-4e0d-4859-8d74-9fd3b1da38cb