Update bash

Changes:

- https://github.com/tianon/docker-bash/commit/2c66e0b: Update to commit fdbb7e848173725dfd4221d39cf72c64d79e1f09
- https://github.com/tianon/docker-bash/commit/729697a: Update to commit fc94d47412833d9c3f0f9b243e1ac233e8846685

library/bash

@@ -3,9 +3,9 @@
 Maintainers: Tianon Gravi <[email protected]> (@tianon)
 GitRepo: https://github.com/tianon/docker-bash.git
 
-Tags: devel-20200501, devel
+Tags: devel-20200508, devel
 Architectures: amd64, arm32v6, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: 2da92db158abf8f64852ac6bb67ee70bc9ba3387
+GitCommit: 2c66e0bc2920fc7ea7f4398ea169e1a4da3030da
 Directory: devel
 
 Tags: 5.0.17, 5.0, 5, latest