hadley/adv-r — pull request #637 by daattali (2014-12-26 22:25:05+00:00)
Title: Typos and small fixes in "Functions" chapter

- change "user created" to "user-created"
- change a "paste(sep='')" to paste0() (paste0 is indeed used in the next paragraph)
- change side-effects to "side effects" (it is used non-hyphenated the rest of the times in the chapter)