archive_write_set_format_option(3) on FreeBSD
The text 9c9d557dfbd7, as FreeBSD 14.0-RELEASE, FreeBSD 13.3-RELEASE, FreeBSD 13.2-RELEASE, FreeBSD 13.1-RELEASE, FreeBSD 12.4-RELEASE, FreeBSD 12.3-RELEASE shipped it.
functions controlling options for writing archives