The docker image fails with:
/usr/bin/solana-run.sh: line 66: ./fetch-spl.sh: No such file or directory
In the solana docker image, scripts/run.sh is copied to
/usr/bin/solana-run.sh and fetch-spl.sh to /usr/bin/fetch-spl.sh. This
means that the line:
cd "$(dirname "$0")/.."
means we're doing a "cd /usr", which means we can't find fetch-spl.sh or
spl-genesis-args.sh (i.e., the error above).
