Remove bash older than 4.0

Bash+ library requires Bash 4.0 or higher

Author: admorgan

Makefile

@@ -24,7 +24,7 @@ INSTALL_MAN1 ?= $(DESTDIR)$(PREFIX)/share/man/man1
 # Docker variables:
 DOCKER_TAG ?= git-subrepo-testing:latest
 DOCKER_IMAGE := $(DOCKER_TAG)
-BASH_VERSIONS ?= 5.3 5.2 5.1 5.0 4.4 4.3 4.2 4.1 4.0 3.2
+BASH_VERSIONS ?= 5.3 5.2 5.1 5.0 4.4 4.3 4.2 4.1 4.0
 GIT_VERSIONS := 2.51 2.48 2.40 2.30 2.29 2.25 2.23
 
 # Create matrix of all bash/git combinations for comprehensive testing

test/Dockerfile

@@ -32,17 +32,6 @@ RUN cd /root \
     && rm -fr shellcheck* \
     && true
 
-# Build/install bash-3.2.57
-RUN cd /root \
-    && wget https://ftp.gnu.org/gnu/bash/bash-3.2.57.tar.gz \
-    && tar -xzf bash-3.2.57.tar.gz \
-    && cd bash-3.2.57 \
-    && ./configure --prefix=/bash-3.2 \
-    && make \
-    && make install \
-    && rm -fr bash* \
-    && true
-
 # Buil/install bash-4.0
 RUN cd /root \
     && wget https://ftp.gnu.org/gnu/bash/bash-4.0.tar.gz \