playTests.sh updated to work better with /bin/sh
playTests.sh updated to work better with /bin/sh

ds77/zstd,inikep/zstd,inikep/zstd,Majlen/zstd,Cyan4973/zstd,inikep/zstd,Cyan4973/zstd,ds77/zstd,Cyan4973/zstd,ds77/zstd,ds77/zstd,Majlen/zstd,Cyan4973/zstd,Majlen/zstd,inikep/zstd,Majlen/zstd,Cyan4973/zstd