You just add it to the gridseed options: --gridseed-options baud=115200,freq=850,per_chip_stats=1
My version also has it as I forked from the original repo, so you can use either one to check it out.
Darn it! Foiled again!

Just when I think I figured out something on my own...turns out I'm wrong. Thanks for the help Girhes!