archive_entry_set_gid(3) on FreeBSD
The text 62899dcf0a9a, as FreeBSD 12.1-RELEASE, FreeBSD 12.0-RELEASE, FreeBSD 11.3-RELEASE, FreeBSD 11.2-RELEASE, FreeBSD 11.1-RELEASE, FreeBSD 10.4-RELEASE shipped it.
functions for manipulating ownership and permissions in archive entry descriptions