group(5) on OpenBSD
The text 1e648c4965bd, as OpenBSD 2.4, OpenBSD 2.3, OpenBSD 2.2, OpenBSD 2.1 shipped it.
format of the group permissions file
The text 1e648c4965bd, as OpenBSD 2.4, OpenBSD 2.3, OpenBSD 2.2, OpenBSD 2.1 shipped it.
format of the group permissions file