[Rd] Spurious output white line in R script (PR#8631)

[François Pinard]

[François Pinard, clarifying himself]

>Adding a newline when "--slave" has not been selected, and whenever the 
>output is connected to a tty, is also wise, regardless if termination 
>is effected through q() or through hitting end-of-file.

Just to make sure I'm not misinterpreted, the "and" of the first line 
above should be read as a logical conjunction.

-- 
François Pinard   http://pinard.progiciels-bpi.ca