[Sshguard-maintainers] startup script (linux)

[Mij <mi...@bi...>]

dear maintainers,

Jérôme Lemaire sent me this startup script for sshguard. I did not review
this contribution.

While my recommendation is definitely to have sshguard run by syslog, I
hope it can be useful for those of you who decide to make sshguard run
standalone.