This copmlements 0c93d3592f51311568a067bddf207692e9d745ce, and fixes
<https://odoo.itopie.ch/web#id=281&active_id=281&model=project.task&view_type=form&cids=1&menu_id=323>.

installation/nextcloud_itopie.md

@@ -385,7 +385,7 @@ Il suffit donc de créer le dossier pour les sauvegardes SQL et configurer le `c
    done
 # BACKUP_SQL_CMD_FULL="/usr/local/bin/backup-sql.sh -b postgresql -o /srv/backup/sql -d nextcloud -u ncadmin -w ${ncadmin_DB_PASSWORD} -s localhost"
 # cat <<EOF >/etc/cron.d/local_postgresql
-0   1   *   *   *       root   ${BACKUP_SQL_CMD_FULL}
+0   1   *   *   *       root   ${BACKUP_SQL_CMD_FULL} >/dev/null
 EOF
 # ${BACKUP_SQL_CMD_FULL}
 #