Currently Heka fails to parse the RabbitMQ logs. There are two
problems:
1. The rabbit-sasl.log file is ignored but the file_match expression
does not match.
2. The delimiter used in the RegexSplitter makes Heka stop on the
very first log entry. '\n\n(=[^=]+====' (with two \n's) is
a better delimiter. deliver_incomplete_final is used to get the
final log entry.
TrivialFix
Change-Id: I94720340d5b2d6fd5d7641b9ff58733f6cd882ee
95cf542f8d