sh -e in get-lily.sh to exit immediately on error
sh -e in get-lily.sh to exit immediately on error

for this shell script, each command depends on the previous commands
completing successfully. as such, it should execute as a shell script
with the `e` opt.

tulip-control/tulip-control,tulip-control/tulip-control,tulip-control/tulip-control,tulip-control/tulip-control