in dev-tools/mage/gotool/modules.go [33:41]
func (cmd modCommand) run(opts ...ArgOpt) error {
o := make([]ArgOpt, len(opts)+1)
o[0] = posArg(cmd.method)
for i, opt := range opts {
o[i+1] = opt
}
args := buildArgs(o)
return runVGo("mod", args)
}