SUCCESS: Integrated in flume-trunk #525 (See https://builds.apache.org/job/flume-trunk/525/)
FLUME-2217. Add option to preserve all Syslog headers in syslog sources (mpercy: http://git-wip-us.apache.org/repos/asf/flume/repo?p=flume.git&a=commit&h=9790ca7587060285efa4ae64591cea17dd3f00cf)

• flume-ng-core/src/main/java/org/apache/flume/source/SyslogUtils.java
• flume-ng-core/src/main/java/org/apache/flume/source/SyslogTcpSource.java
• flume-ng-core/src/test/java/org/apache/flume/source/TestSyslogParser.java
• flume-ng-doc/sphinx/FlumeUserGuide.rst
• flume-ng-core/src/test/java/org/apache/flume/source/TestMultiportSyslogTCPSource.java
• flume-ng-core/src/main/java/org/apache/flume/source/SyslogParser.java
• flume-ng-core/src/main/java/org/apache/flume/source/MultiportSyslogTCPSource.java
• flume-ng-core/src/test/java/org/apache/flume/source/TestSyslogUdpSource.java
• flume-ng-core/src/test/java/org/apache/flume/source/TestSyslogUtils.java
• flume-ng-core/src/test/java/org/apache/flume/source/TestSyslogTcpSource.java
• flume-ng-core/src/main/java/org/apache/flume/source/SyslogUDPSource.java

Pushed to trunk and flume-1.5 branches. Thanks for the patch Jeff!

+1 LGTM. I am going to commit this soon.

Removed baosRaw and extra byte array.
Modified the initial parsing to include Priority e.g. <10>
Modified the regex to account for this and we should be good now.
Was able to build successfully.
Please let me know if there is anything else I can do to get this committed.

Rev 2 based on feedbak from Mike Percy on reviewboard.

Here is a first pass at this.
Please not that the functionality of all 3 sources was modified slightly such that with this patch we will now preserve the syslog priority as well as the timestamp and header. e.g.

<10>2013-10-31T17:36:27.381-07:00 localhost.localdomain test UDP syslog data