default_Makefile_args: Return the default value of the
args argument to make().
Description
For make(..., parallelism = "Makefile"),
this function configures the default
arguments to system2().
It is an internal function, and most users do not need to
worry about it.
Usage
default_Makefile_args(jobs, verbose)
Arguments
jobs
number of jobs
verbose
logical or numeric, control printing to the console.
Use pkgconfig to set the default value of verbose
for your R session:
for example, pkgconfig::set_config("drake::verbose" = 2).