r-cran-vr: extra-license-file usr/lib/R/library/MASS/LICENCE
r-cran-vr: extra-license-file usr/lib/R/library/class/LICENCE
r-cran-vr: extra-license-file usr/lib/R/library/nnet/LICENCE
r-cran-vr: extra-license-file usr/lib/R/library/spatial/LICENCE
