Update bash

[tianon]

Changes:

• tianon/docker-bash@81c7838: Update 5.1-rc to 5.1-rc1
• tianon/docker-bash@db0fc4c: Update devel to 20200924, commit c84a1ebb625289e6b129a167667a78df3407d7d6

[github-actions]

Diff for 432a262:

diff --git a/_bashbrew-cat b/_bashbrew-cat
index 1f37370..283b976 100644
--- a/_bashbrew-cat
+++ b/_bashbrew-cat
@@ -46,12 +46,12 @@ Architectures: amd64, arm32v6, arm32v7, arm64v8, i386, ppc64le, s390x
 GitCommit: 7d80c7cc5d829b6be9e04b6b2cba98a228fb67db
 Directory: 5.0
 
-Tags: 5.1-beta, 5.1-rc, rc
+Tags: 5.1-rc1, 5.1-rc, rc
 Architectures: amd64, arm32v6, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: 7d80c7cc5d829b6be9e04b6b2cba98a228fb67db
+GitCommit: 81c78384e4a7cb7839f75b03ef3dc32453b47b0d
 Directory: 5.1-rc
 
-Tags: devel-20200921, devel
+Tags: devel-20200924, devel
 Architectures: amd64, arm32v6, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: 9fc0cdf3d999dfe38bc4d07f73b2b0d83653dde3
+GitCommit: db0fc4c9f5d1b578b9469fa204ed99d493e04834
 Directory: devel
diff --git a/_bashbrew-list b/_bashbrew-list
index 53c059c..87c7c21 100644
--- a/_bashbrew-list
+++ b/_bashbrew-list
@@ -19,9 +19,9 @@ bash:4.4.23
 bash:5
 bash:5.0
 bash:5.0.18
-bash:5.1-beta
 bash:5.1-rc
+bash:5.1-rc1
 bash:devel
-bash:devel-20200921
+bash:devel-20200924
 bash:latest
 bash:rc
diff --git a/bash_devel/Dockerfile b/bash_devel/Dockerfile
index 609d2a8..d8d9153 100644
--- a/bash_devel/Dockerfile
+++ b/bash_devel/Dockerfile
@@ -7,8 +7,8 @@
 FROM alpine:3.12
 
 # https://git.savannah.gnu.org/cgit/bash.git/commit/?h=devel
-ENV _BASH_COMMIT ef70f295bc396e6eb1e8245cfe896b5ad070d91f
-ENV _BASH_VERSION devel-20200921
+ENV _BASH_COMMIT c84a1ebb625289e6b129a167667a78df3407d7d6
+ENV _BASH_VERSION devel-20200924
 # prefixed with "_" since "$BASH..." have meaning in Bash parlance
 
 RUN set -eux; \
diff --git a/bash_rc/Dockerfile b/bash_rc/Dockerfile
index c1325fc..cbabcab 100644
--- a/bash_rc/Dockerfile
+++ b/bash_rc/Dockerfile
@@ -7,8 +7,8 @@
 FROM alpine:3.12
 
 # https://ftp.gnu.org/gnu/bash/?C=M;O=D
-ENV _BASH_VERSION 5.1-beta
-ENV _BASH_BASELINE 5.1-beta
+ENV _BASH_VERSION 5.1-rc1
+ENV _BASH_BASELINE 5.1-rc1
 # prefixed with "_" since "$BASH..." have meaning in Bash parlance
 
 RUN set -eux; \