Update bash

Changes:

- https://github.com/tianon/docker-bash/commit/b678c0c: Update to commit ab309487d5c1d7fa1a40e2d6b2e77e413cef4933
- https://github.com/tianon/docker-bash/commit/01d8523: Update to commit 32ba27b400d4ad50f265ad6b05d614292b7a430c
- https://github.com/tianon/docker-bash/commit/a084a7b: Update to commit 6ebfddbf2e32828761111c5b1e77cecffa1769fd

library/bash

@@ -3,9 +3,9 @@
 Maintainers: Tianon Gravi <[email protected]> (@tianon)
 GitRepo: https://github.com/tianon/docker-bash.git
 
-Tags: devel-20200527, devel
+Tags: devel-20200605, devel
 Architectures: amd64, arm32v6, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: 2d420e498d46e7241dd16e3185c8696a1f8eef36
+GitCommit: b678c0cae1229508e00b0565441b519210610a84
 Directory: devel
 
 Tags: 5.0.17, 5.0, 5, latest