Don't use camel_case_linter on package names

[bmwilly]

Reproducible example:

$ echo "library(randomForest)" > bad.R
$ Rscript -e "lintr::lint('bad.R')"
bad.R:1:9: style: Variable and function names should be all lowercase.
library(randomForest)
        ^~~~~~~~~~~~

Strangely, this doesn't happen if only the first letter is capitalized:

$ echo "library(Rcpp)" > good.R
$ Rscript -e "lintr::lint('good.R')"
$ 

[jfiksel]

I'm having the same issue, would love to see this fixed

[fangly]

You could use object_name_linter in the meantime (#194).

[fangly]

Fixed in #214