SYSTEMD: Replace parameter --debug-to-files with ${DEBUG_LOGGER}
Users can set variable DEBUG_LOGGER in environment files
(/etc/sysconfig/sssd or /etc/default/sssd; depending on the distribution)
to override default logging to files.
e.g.
DEBUG_LOGGER=--logger=stderr
DEBUG_LOGGER=--logger=journald
Resolves:
https://pagure.io/SSSD/sssd/issue/3433
Reviewed-by: Fabiano FidĂȘncio <fidencio@redhat.com>