Update signalk.service to use journal logging

[Champang]

When following the signalk service on a Raspberry, the following warning message appears:

/etc/systemd/system/signalk.service:5: Standard output type syslog is obsolete, automatically updating to journal. Please update your unit file, and consider removing the setting altogether.

To solve this problem, you need to change the following lines in the file: replace syslog by journal.

sudo nano /etc/systemd/system/signalk.service

StandardOutput=syslog by StandardOutput=journal
StandardError=syslog by StandardError=journal

[tkurki]

How backwards compatible would this be?

[Champang]

Compatibility: systemd-journald is designed to be compatible with applications that use syslog. This means that messages sent to the journal via StandardOutput=journal will be accessible in the same way as those sent to syslog.

Additional Features: By using StandardOutput=journal, you benefit from additional features offered by journald, such as structured logging, easier filtering and searching of logs, and better log management in terms of performance and storage.

Configuration: Ensure that your service is configured to use systemd and that journald is active on your system. Most modern Linux distributions use systemd by default.

Testing: Not possible for me to test for all Linux OS