tests/expected/getopt/options-posix_correctly

 -a -b '1' -c '2' --a-long --b-long '3' --c-long '' -- 'foo' 'bar' 'xyxxy' '--a-long'
exit value: 0
 -a -b '1' -c '2' --a-long --b-long '3' --c-long '' -- 'foo' 'bar' 'xyxxy' '--a-long'
exit value: 0