sessreg(1x) on Linux
The text d18d3bb6c69b, as Debian 2.1 (Slink), Debian 2.0 (Hamm), Debian 1.3 (Bo) shipped it.
manage utmp/wtmp entries for non-init clients
Flags it lists
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-a -
-d -
-h -
-l -
-s -
-t -
-u -
-w -
-x