EON Steel: fix up missing gastime/ventilation parsing
EON Steel: fix up missing gastime/ventilation parsing

Now that I actually have dives with the new format and with air
integration, I could test it all out and noticed some missing pieces.

This adds parsing for gastime and ventilation events (although we don't
*do* anything with the ventilation data, I have no idea what the number
means).

Also, this fixes an annoying warning message problem, which caused these
missing events to cause a SIGSEGV rather than just a bening warning.
Stupid bug, and only went unnoticed because libdivecomputer isn't built
with format string warnings.

Signed-off-by: Linus Torvalds <69652caca27c8b940640ad396ab71f93cacec34f@linux-foundation.org>
Signed-off-by: Dirk Hohndel <a00b27378a09822d5638cdfb8c2e7ccc36d74c56@hohndel.org>

henrik242/libdivecomputer,glance-/libdivecomputer,glance-/libdivecomputer,Poltsi/libdivecomputer-vms,henrik242/libdivecomputer