Hangs on very long lines #55

It seems toolong hangs indefinitly when it encounters a line that is... toolong :)

This issue exists for toolong 1.5.0, I don't reproduce with toolong 1.4.0

Here's a test file
root.log.139.txt
And here's a capture of htop

while toolong looks like this

I'll take a look at the code and make a PR if I can find the time.

Edit: Looks like it's the RegexLogFormat that takes too much time to resolve

Thanks