Package journal provides write bindings to the systemd journal
func Enabled() bool
Enabled returns true iff the systemd journal is available for logging
Send a message to the systemd journal. vars is a map of journald fields to values. Fields must be composed of uppercase letters, numbers, and underscores, but must not start with an underscore. Within these restrictions, any arbitrary field name may be used. Some names have special significance: see the journalctl documentation (http://www.freedesktop.org/software/systemd/man/systemd.journal-fields.html) for more details. vars may be nil.