#74 systemd accounting line match tuning

[Marius Feraru]

Current regexp doesn't match all lines that it should:
- some versions have no dot at the end,
e.g. systemd v239 (EL8) logs "foo.service: Consumed 394ms CPU time"
- misses if IP accounting is enabled,
e.g. "session-123.scope: Consumed 13min 23.966s CPU time, no IP traffic." or
"baz.service: Consumed 4.248s CPU time, received 182.0K IP traffic, sent 26.5K IP traffic."

[Bjorn]

Thanks for submitting patch.