Henrik Aronsen points out that we've not made it possible to edit the He
percentages for trimix diving. It's easy enough to do, I just didn't
have any dives that needed it myself. So here goes.
Reported-by: Henrik Brautaset Aronsen <subsurface@henrik.synth.no> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>