Appends each of args, verbatim, to the command line that will be passed
to the process being run.
If any element of args is an input file, addFileInput must be used
instead to ensure correct cache behavior.
If any element of args is an output file, addOutputFileArg (or related
function) must be used instead to ensure correct cache behavior.
pub fn addArgs(run: *Run, args: []const []const u8) void
pub fn addArgs(run: *Run, args: []const []const u8) void {
for (args) |arg| run.addArg(arg);
}