func (c *RunCommand) SetFlags(f *gnuflag.FlagSet) {
c.out.AddFlags(f, "smart", cmd.DefaultFormatters)
f.BoolVar(&c.all, "all", false, "run the commands on all the machines")
f.DurationVar(&c.timeout, "timeout", 5*time.Minute, "how long to wait before the remote command is considered to have failed")
f.Var(cmd.NewStringsValue(nil, &c.machines), "machine", "one or more machine ids")
f.Var(cmd.NewStringsValue(nil, &c.services), "service", "one or more service names")
f.Var(cmd.NewStringsValue(nil, &c.units), "unit", "one or more unit ids")
}