Added features:
* Repeated ssh errors parsing:
Sometimes when the same message appears a lot of times syslog
simply replace the line next to the first message with a :
/var/log/messages:
<month> <day> <hour> <host> sshd[<pid>] Failed password for <USER> from <ip>
<month> <day> <hour> <host> last message repeated 2 times.
this fixes stores a hash ref to the previous line that contain the line
content, a array ref to the IPs to block and its badness, and use it to
repeat the blocking action
* Fixed typo.