subNonStandardNames w NROW(x)=0

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/ecdat@258 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
subNonStandardCharacters len(x)<1

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/ecdat@259 edb9625f-4e0d-4859-8d74-9fd3b1da38cb