[Rd] exit() and stop() documentation (PR#6706)

[ivo.welch at yale.edu]

Full_Name: ivo welch
Version: any
OS: linux
Submission from: (NULL) (130.132.33.212)



hi:  in "?stop", in "See Also", please add "quit()" as a mention.  Similarly, I
would create a help for ?exit, which simply states that "you are probably
looking for quit() or stop()".

regards,

/ivo