Make ability to use file for log output

[todo]

shortify/cmd/shortify/main.go

Lines 28 to 33 in 5b974ee

	defer logger.Init("shortify", verboseLogging, syslogLogging, ioutil.Discard).Close() // TODO Make ability to use file for log output
	if generateConfig {
	confStr, err := config.Generate()
	if err != nil {
	log.Fatalf("Cannot generate config! %s", err.Error())
	}

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This issue was generated by todo based on a TODO comment in 5b974ee. It's been assigned to @ChronosX88 because they committed the code.