@Override
    public String toString() { return toString(false); }
@Test
    void testToString() {
        assertEquals("HTTP 200/OK", new HttpResult().setContent("Foo").toString());
        assertEquals("HTTP 200/OK\n\nFoo", new HttpResult().setContent("Foo").toString(true));
        assertEquals("HTTP 200/OK", new HttpResult().toString(true));
        assertEquals("HTTP 200/OK", new HttpResult().setContent("").toString(true));
    }