This conversion was missed in the previous commit:
commit a7eb7de531
Author: Daniel P. Berrangé <berrange@redhat.com>
Date: Thu Jun 6 12:57:08 2024 +0100
meson: allow systemd unitdir to be changed
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reported-by: Yaakov Selkowitz <yselkowi@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>