Roxygen2: how to remove newlines between usage statements?

Question

I am using roxygen2 for generating .Rd files. Multiple functions share the same documentation and each has their usage line described therein. However, roxygen2 automatically adds new lines in between all the functions.

Here is an example of how the functions are defined in the R file with roxygen2 comment tags:

#' @rdname name
#' @export
fun1 <- function(x, y) {
  ...
}

#' @rdname name
#' @export
fun2 <- function(x, y) {
  ...
}

#' @rdname name
#' @export
fun3 <- function(x, y) {
  ...
}

#' @rdname name
#' @export
fun4 <- function(x, y) {
  ...
}

And here is the usage section from the generated Rd:

\usage{
fun1(x, y)

fun2(x, y)

fun3(x, y)

fun4(x, y)
}

Ideally I would like to generate the following:

\usage{
fun1(x, y)
fun2(x, y)

fun3(x, y)
fun4(x, y)
}

Does roxygen2 allow to specify this somehow, or should it be done manually?