Log is too verbose when GCViewer is run from the command line

[ebourg]

When GCViewer is invoked from the command line the output is too verbose and difficult to read:

$ xvfb-run java -jar target/gcviewer-1.36-SNAPSHOT.jar src/test/resources/openjdk/SampleSun1_8_0Series-Part1.txt summary.csv
Nov 21, 2018 12:01:27 PM com.tagtraum.perf.gcviewer.GCViewer doMain
INFO: GCViewer command line mode
Nov 21, 2018 12:01:27 PM com.tagtraum.perf.gcviewer.imp.DataReaderFacade loadModel
INFO: GCViewer version 1.36-SNAPSHOT (2018-11-21T11:55:10+0100)
Nov 21, 2018 12:01:27 PM com.tagtraum.perf.gcviewer.imp.DataReaderFactory getDataReaderBySample
INFO: File format: Sun 1.6.x
Nov 21, 2018 12:01:27 PM com.tagtraum.perf.gcviewer.imp.DataReaderSun1_6_0 read
INFO: Reading Sun / Oracle 1.4.x / 1.5.x / 1.6.x / 1.7.x / 1.8.x format...
Nov 21, 2018 12:01:27 PM com.tagtraum.perf.gcviewer.imp.DataReaderSun1_6_0 read
INFO: Java HotSpot(TM) 64-Bit Server VM (25.45-b02) for windows-amd64 JRE (1.8.0_45-b15), built on Apr 30 2015 12:40:44 by "java_re" with MS VC++ 10.0 (VS2010)
Nov 21, 2018 12:01:27 PM com.tagtraum.perf.gcviewer.imp.DataReaderSun1_6_0 read
INFO: Memory: 4k page, physical 16664956k(9830208k free), swap 20473812k(10916924k free)
Nov 21, 2018 12:01:27 PM com.tagtraum.perf.gcviewer.imp.DataReaderSun1_6_0 read
INFO: CommandLine flags: -XX:+CMSParallelRemarkEnabled -XX:+CMSScavengeBeforeRemark -XX:GCLogFileSize=20480 -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/logs -XX:InitialHeapSize=838860800 -XX:MaxHeapSize=838860800 -XX:MaxNewSize=279621632 -XX:MaxTenuringThreshold=6 -XX:NewSize=279621632 -XX:NumberOfGCLogFiles=10 -XX:OldPLABSize=16 -XX:OldSize=559239168 -XX:+PrintGC -XX:+PrintGCDateStamps -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+ScavengeBeforeFullGC -XX:+UseCompressedClassPointers -XX:+UseCompressedOops -XX:+UseConcMarkSweepGC -XX:+UseGCLogFileRotation -XX:-UseLargePagesIndividualAllocation -XX:+UseParNewGC
Nov 21, 2018 12:01:27 PM com.tagtraum.perf.gcviewer.imp.DataReaderSun1_6_0 read
INFO: Done reading.
Nov 21, 2018 12:01:27 PM com.tagtraum.perf.gcviewer.GCViewer doMain
INFO: export completed successfully

I suggest simplifying the log format to something like this:

GCViewer version 1.36-SNAPSHOT (2018-11-21T11:55:10+0100)
File format: Sun 1.6.x
Reading Sun / Oracle 1.4.x / 1.5.x / 1.6.x / 1.7.x / 1.8.x format...
Java HotSpot(TM) 64-Bit Server VM (25.45-b02) for windows-amd64 JRE (1.8.0_45-b15), built on Apr 30 2015 12:40:44 by "java_re" with MS VC++ 10.0 (VS2010)
Memory: 4k page, physical 16664956k(9830208k free), swap 20473812k(10916924k free)
CommandLine flags: -XX:+CMSParallelRemarkEnabled -XX:+CMSScavengeBeforeRemark -XX:GCLogFileSize=20480 -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/logs -XX:InitialHeapSize=838860800 -XX:MaxHeapSize=838860800 -XX:MaxNewSize=279621632 -XX:MaxTenuringThreshold=6 -XX:NewSize=279621632 -XX:NumberOfGCLogFiles=10 -XX:OldPLABSize=16 -XX:OldSize=559239168 -XX:+PrintGC -XX:+PrintGCDateStamps -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+ScavengeBeforeFullGC -XX:+UseCompressedClassPointers -XX:+UseCompressedOops -XX:+UseConcMarkSweepGC -XX:+UseGCLogFileRotation -XX:-UseLargePagesIndividualAllocation -XX:+UseParNewGC
Done reading.
Export completed successfully