Feature request: allow tail-file to be specified in configuration file

[dnmvisser]

Currently the only way to tell swatchdog which file(s) to tail is using the --tail-file command line argument.
This means that when used in combination with startup scripts, those have to be hardcoded.
I would be nice to have swatchdog accept a single argument of a configuration file, where all of this is configured.
Perhaps a new item tailfile or something like that:

tailfile  /var/log/mail.log
watchfor  /^blahblah.*blah$/
[email protected], subject="Blah found"

tailfile /var/log/auth.log
watchfor /Invalid user/
mail [email protected], subject="Invalid user sign-in attempt"

I'm sure there would be more to it than this...

[cpina]

I'm also missing this...