bug#73317: Clojure: Couldn't find 'java'. Please set JAVA_HOME.

[Brennan Vincent]

Trying to run clojure in clojure-tools doesn't work:

$ guix shell --pure clojure-tools -- clojure
Couldn't find 'java'. Please set JAVA_HOME.

This comes closer:

$ guix shell --pure clojure-tools openjdk -- clojure
/gnu/store/v11866kb8y4rznf0b45zblvn718spnb6-profile/bin/clojure: line
285: mkdir: command not found

This works:

$ guix shell --pure clojure-tools openjdk coreutils -- clojure

So I guess we need to add openjdk and coreutils to the dependencies of 
clojure-tools.