Update bash

Changes:

- https://github.com/tianon/docker-bash/commit/ed2e30d: Update to commit d11d79842a99e3312751fc783a83de9f173d9943

library/bash

@@ -3,9 +3,9 @@
 Maintainers: Tianon Gravi <[email protected]> (@tianon)
 GitRepo: https://github.com/tianon/docker-bash.git
 
-Tags: devel-20190816, devel
+Tags: devel-20190822, devel
 Architectures: amd64, arm32v6, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: 117534f6bdac1bec7982245c94224195f4db3583
+GitCommit: ed2e30dbdebf6b86815a9ba5cae2b4e8bcab406f
 Directory: devel
 
 Tags: 5.0.9, 5.0, 5, latest