[Rd] Warning: a final empty element has been omitted

[hadley wickham]

How can I suppress this warning?

> options(warn = -10)
> list(1,2,3,)
Warning: a final empty element has been omitted
the part of the args list of 'list' being evaluated was:
   (1, 2, 3, )
[[1]]
[1] 1

[[2]]
[1] 2

[[3]]
[1] 3

> suppressWarnings(list(1,))
Warning: a final empty element has been omitted
the part of the args list of 'list' being evaluated was:
   (1, )
[[1]]
[1] 1


And can anyone add some insight as to why this warning was added?  It
was nice to be able to use a construction like:

a <- list(
 b = 3,
 c = 4,
)

so when you added a new line, you could just copy and paste an existing line.

Hadley