Github user GJL commented on a diff in the pull request:
https://github.com/apache/flink/pull/6319#discussion_r202271606
--- Diff: flink-container/docker/build.sh ---
@@ -0,0 +1,118 @@
+#!/bin/sh
--- End diff --
Just want to note that in other scripts, `bash` is used. Also
`/usr/bin/env` is used to determine the `bash` binary. See `config.sh` for an
example. ---
