在安装了 bash 的 alpine 3.10 上无法运行

We use wait-for-it.sh heavily in CI for Docker integration testing in golang. Recently a job broke due to wait-for-it.sh error. I believe the issue may have to do with something changing in timeout from alpine3.9 (works) to alpine 3.10 (not working). In both cases we were installing bash with apk.