Subject: Apache Ant missing dependencies

From: Erik <erik@gicks>
Date: Fri, 3 Mar 2023 19:47:21 +0100

When running `guix shell --pure ant openjdk openjdk:jdk -- ant`, there
are errors for missing commands as well as ant believing that java is
not installed.  Adding `coreutils` fixes the missing commands, and
adding `which` makes it recognize the java installation.