b.WriteString(c.Path)
	for _, a := range c.Args[1:] {
		b.WriteByte(' ')
		b.WriteString(a)
	}
	return b.String()
}

// interfaceEqual protects against panics from doing equality tests on
// two interfaces with non-comparable underlying types.
func interfaceEqual(a, b any) bool {
	defer func() {
		recover()
	}()
	return a == b
}

func (c *Cmd) argv() []string {
	if len(c.Args) > 0 {