no flag for version

[lotusnoir]

Hello, Is it possible to add a flag --version to get the version of the exporter ?

Usage of /usr/local/bin/rsyslog_exporter:
  -version             Show application version.
  -silent
    	Disable logging of errors in handling stats lines
  -tls.server-crt string
    	Path to PEM encoded file containing TLS server cert.
  -tls.server-key string
    	Path to PEM encoded file containing TLS server key (unencyrpted).
  -web.listen-address string
    	Address to listen on for web interface and telemetry. (default ":9104")
  -web.telemetry-path string
    	Path under which to expose metrics. (default "/metrics")

Thanks in advance