Update bash

Changes:

- https://github.com/tianon/docker-bash/commit/d20fd75: Update devel to 20201118, commit 66c2247c48819478146f34cc5dff3d43d743b857

library/bash

@@ -3,9 +3,9 @@
 Maintainers: Tianon Gravi <[email protected]> (@tianon)
 GitRepo: https://github.com/tianon/docker-bash.git
 
-Tags: devel-20201116, devel
+Tags: devel-20201118, devel
 Architectures: amd64, arm32v6, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: b74e46366440c29775c5dc40151b372d573c0193
+GitCommit: d20fd750f0b88e865e60ca682dacd46f5882956d
 Directory: devel
 
 Tags: 5.1-rc3, 5.1-rc, rc