Okay ran it and the majority of it looked like communication reporting type logs going back as far as I could see till right at the end were you do see some references to shutting down but I am not sure what caused it but it did happen right around the time it stopped logging. Here is part of the last bit of output it logged:
07-19-2015 08:31:43.761 -0500 INFO TcpInputProc - Setting up input quiesce timeout for : 15 secs
07-19-2015 08:31:43.761 -0500 INFO TcpInputProc - Shutting down listening ports
07-19-2015 08:31:43.761 -0500 INFO TcpInputProc - Running shutdown level 1. Closing listening ports.
07-19-2015 08:31:43.761 -0500 INFO ShutdownHandler - shutting down level "ShutdownLevel_TcpInput1"
07-19-2015 08:31:43.761 -0500 INFO ShutdownHandler - shutting down level "ShutdownLevel_Thruput"
07-19-2015 08:31:43.761 -0500 INFO ShutdownHandler - shutting down level "ShutdownLevel_KVStore"
07-19-2015 08:31:43.761 -0500 INFO ShutdownHandler - shutting down level "ShutdownLevel_Begin"
07-19-2015 08:31:43.761 -0500 INFO ShutdownHandler - Shutting down splunkd
07-19-2015 08:31:43.761 -0500 INFO loader - Shutdown HTTPDispatchThread
07-19-2015 08:31:43.761 -0500 INFO PipelineComponent - Performing early shutdown tasks
07-19-2015 08:31:13.497 -0500 INFO Metrics - group=tpool, name=bundlereplthreadpool, qsize=0, workers=0, qwork_units=0
07-19-2015 08:31:13.497 -0500 INFO Metrics - group=tpool, name=batchreadertpool, qsize=0, workers=1, qwork_units=0
07-19-2015 08:31:13.497 -0500 INFO Metrics - group=tcpout_connections, name=default-autolb-group:172.16.51.161:9997:0, sourcePort=8089, destIp=172.16.51.161, destPort=9997, _tcp_Bps=217.47, _tcp_KBps=0.21, _tcp_avg_thruput=0.20, _tcp_Kprocessed=2939, _tcp_eps=0.30, kb=6.37
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