Fallback handler called for "UnknownOption". Got 5 args Arg #0: these Arg #1: are Arg #2: handled Arg #3: like Arg #4: ARG_LIST! Fallback handler called for "Foo". Got 2 args Arg #0: test Arg #1: test2 Fallback handler called for "Bar". Got 2 args Arg #0: abcd Arg #1: efgh Fallback handler called for "Baz". Got 2 args Arg #0: lala Arg #1: alal