I've been reading through the backup code (lucky me) and this term comes up all the time. It means nothing to me and I can't find any other reference.
Just to satisfy my curiosity, can any of you computer science nerds explain what it means?
Assuming it wasn't just something Eloy invented of course
Eloy is your main suspect but you have 3 more:
% ack-grep optigroup | grep / | cut -d: -f1 | sort | uniq | xargs -n 1 git blame | grep optigroup | cut -d' ' -f2,3 | sort | uniq -c
9 (David Mudrak
121 (Eloy Lafuente
50 (Petr Skoda
3 (sam marshall
Tomek
Wow! If there was a prize for the most impressive Unix command line command...
I think it may mean "optional group".