[Rd] Small typo in nlme documentation

Hi, I've noticed a small typo in `help("varClasses", "nlme")`. Contrary to what the "Note" says, variance classes need a method for `Initialize` (capital i) and not `initialize`. Best regards, Roland -- Dr. Roland Fuß Thünen-Institut für Agrarklimaschutz/ Thünen Institute of Climate-Smart

[Rd] FR: improve "use" function

Hello, Currently `use` fails silently if you try to attach functions from the same namespace. It would be nice and more similiar to the use of roxygen2 if it could add (and maybe even remove?) functions. Here is a simple proof of concept I have posted on Stack Overflow [1]. Something similar