typo in R FAQ: sources.list entry for debian 'stable' backports

Dan Davison writes:

The R FAQ at 
http://cran.r-project.org/doc/FAQ/R-FAQ.html#Are-there-Unix-binaries-for-R_003f
advises the use of the following /etc/apt/sources.list entry

deb http://cran.R-project.org/bin/linux/debian stable
.
I think that this is missing a forward slash after the word 'stable'.

From man sources.list:

[...] distribution can specify an exact path, in which case the components 
must be omitted and distribution must end with a slash (/) [...]

And empirically:

dd:/home/dan# cat /etc/apt/sources.list
deb http://cran.R-project.org/bin/linux/debian stable
dd:/home/dan# apt-get update
E: Malformed line 1 in source list /etc/apt/sources.list (dist parse)

versus

dd:/home/dan# cat /etc/apt/sources.list
deb http://cran.R-project.org/bin/linux/debian stable/

dd:/home/dan# apt-get update
Get:1 http://cran.R-project.org stable/ Packages [3155B]
Get:2 http://cran.R-project.org stable/ Release [71B]
Fetched 3226B in 0s (5206B/s)
Reading Package Lists... Done