[Bug 1450443] Bustle quits immediately after stopping a dbus capture

https://bugzilla.redhat.com/show_bug.cgi?id=1450443

--- Comment #1 from Will Thompson will@willthompson.co.uk --- When recording finishes, Bustle reloads the recorded log from disk. (The log is actually saved to ~/.cache/bustle.) I don't remember my rationale for doing this.

What seems to be happening here is that reading back the log is failing due to a change in libpcap which rejects logs with a large snaplen https://bugs.freedesktop.org/show_bug.cgi?id=100220 . Then Bustle tries to fall back to reading an older (pre-2011!) plaintext log format, which is crashing.

I'll cook up a fix.