The LibreSSL 3.4.0 release has an OPENBSD_BRANCH that points to "master" and that branch no longer has the files LibreSSL expects and thus it will no longer build, breaking the test.
The LibreSSL 3.4.0 release has an OPENBSD_BRANCH that points to "master" and that branch no longer has the files LibreSSL expects and thus it will no longer build, breaking the test.