Update bash

Changes:

- https://github.com/tianon/docker-bash/commit/eca7196: Update devel to 20201012, commit 75c5460c4832ac1c75d7cea4333d0838203a708b
- https://github.com/tianon/docker-bash/commit/2adcf1a: Fix .gitattributes specificity

library/bash

@@ -3,9 +3,9 @@
 Maintainers: Tianon Gravi <[email protected]> (@tianon)
 GitRepo: https://github.com/tianon/docker-bash.git
 
-Tags: devel-20200924, devel
+Tags: devel-20201012, devel
 Architectures: amd64, arm32v6, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: db0fc4c9f5d1b578b9469fa204ed99d493e04834
+GitCommit: eca7196f62316b37a4edb4b98b0613206197b111
 Directory: devel
 
 Tags: 5.1-rc1, 5.1-rc, rc