Are reexports necessary?

[dajmcdon]

I'm not sure whether these reexports are necessary. This guide section 13.6.2 seems to suggest the importing would be sufficient. If there are check complaints, maybe these are from examples not library-ing in magrittr/dplyr/tidyr and/or using scope operators for functions?

(But the reexports don't seem to do any harm... printing the functions still seems to identify dplyr as the source/namespace. I guess there is the side effect of clobbering stats::filter, but I'd guess people are used to that / want that all the time now.)

Originally posted by @brookslogan in #77 (comment)