func (ep *ExpectProcess) Expect(s string) (string, error) {
	return ep.ExpectFunc(func(txt string) bool { return strings.Contains(txt, s) })
}
func (ep *ExpectProcess) Expect(s string) (string, error) {
	return ep.ExpectFunc(func(txt string) bool { return strings.Contains(txt, s) })
}
// Expect returns the first line containing the given string.