Fixes <https://bugs.gnu.org/33422>.
Reported by fps.
* gnu/build/activation.scm (add-user): Always pass "-d HOME" when HOME
is true. Pass "--create-home" only when HOME, CREATE-HOME?, and SYSTEM?
are true.
(activate-users+groups): Pass #:create-home? create-home? to
'ensure-user'.
* gnu/tests/base.scm (run-basic-test)["accounts"]: Test 'passwd:dir' as
well.