[ SOLVED ]
I don't need it at all as it was just for lf the file manager for opening images in imv. I just removed the proceeding setsid from the offending lines and all is good.

I'm needing some help from my #OpenBSD family. I used to have a package setsid installed with FreeBSD but cannot find it on OpenBSD, Does anyone have any ideas ?

https://cgit.freebsd.org/ports/tree/sysutils/setsid