Remove syslog constructs from git-daemon unit file

[jake-gordon]

Changes

• Remove StandardOutput, StandardError, and SyslogIdentifier from the git-daemon systemd unit file example.

Context

The syslog output type for StandardOutput and StandardError in the git-daemon unit file is obsolete, along with the SyslogIdentifier option. Since StandardOutput=journal and StandardError=inherit are now the defaults we can leave them unspecified. Journal entries can be filtered with journalctl -u git-daemon so we don't need the SyslogIdentifier.

Licensing

• [X] I provide my work under the project license.
• [X] I grant such license of my work as is required for the purposes of future print editions to Ben Straub and Scott Chacon.