$ idn2 --help … --nostd3asciirules Disable STD3 ASCII rules … But: $ idn2 --nostd3asciirules idn2: unrecognized option '--nostd3asciirules' Seen with libidn2-2.0.4-1.fc27.x86_64.
Thanks! Reported upstream at https://gitlab.com/libidn/libidn2/issues/44
libidn2-2.0.4-4.fc28 has been submitted as an update to Fedora 28. https://bodhi.fedoraproject.org/updates/FEDORA-2018-32c1a599bd
libidn2-2.0.4-4.fc27 has been submitted as an update to Fedora 27. https://bodhi.fedoraproject.org/updates/FEDORA-2018-53a56c4e63
libidn2-2.0.4-4.fc26 has been submitted as an update to Fedora 26. https://bodhi.fedoraproject.org/updates/FEDORA-2018-7e427d9b0d
libidn2-2.0.4-4.el7 has been submitted as an update to Fedora EPEL 7. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2018-03a2d7ceb1
libidn2-2.0.4-4.el6 has been submitted as an update to Fedora EPEL 6. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2018-f5e7ae19a8
libidn2-2.0.4-4.fc26 has been pushed to the Fedora 26 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2018-7e427d9b0d
libidn2-2.0.4-4.fc27 has been pushed to the Fedora 27 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2018-53a56c4e63
libidn2-2.0.4-4.fc28 has been pushed to the Fedora 28 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2018-32c1a599bd
libidn2-2.0.4-4.el6 has been pushed to the Fedora EPEL 6 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2018-f5e7ae19a8
libidn2-2.0.4-4.el7 has been pushed to the Fedora EPEL 7 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2018-03a2d7ceb1
NB: The fix was to change the --help message, not implement the option (no STD3 rules is the default).
libidn2-2.0.4-4.fc28 has been pushed to the Fedora 28 stable repository. If problems still persist, please make note of it in this bug report.
libidn2-2.0.4-4.fc27 has been pushed to the Fedora 27 stable repository. If problems still persist, please make note of it in this bug report.
libidn2-2.0.4-4.fc26 has been pushed to the Fedora 26 stable repository. If problems still persist, please make note of it in this bug report.
libidn2-2.0.4-4.el7 has been pushed to the Fedora EPEL 7 stable repository. If problems still persist, please make note of it in this bug report.
libidn2-2.0.4-4.el6 has been pushed to the Fedora EPEL 6 stable repository. If problems still persist, please make note of it in this bug report.