vertical preview result

gistfile1.txt

$ java -jar ./embulk-0.4.6.jar preview --output-style vertical config.yml
2015-02-23 20:00:35,808 +0900: Embulk v0.4.6
2015-02-23 20:00:37.709 +0900 [INFO] (preview): Listing local files at directory '/Users/yagasakia/tmp/embulk/embulk-example/csv' filtering filename by prefix 'sample_'
2015-02-23 20:00:37.717 +0900 [INFO] (preview): Loading files [/Users/yagasakia/tmp/embulk/embulk-example/csv/sample_01.csv]
******************* 1 **********************
            id:long: 1
       account:long: 32,864
     time:timestamp: 2015-01-27 19:23:49 UTC
 purchase:timestamp: 2015-01-27 00:00:00 UTC
     comment:string: embulk

******************* 2 **********************
            id:long: 2
       account:long: 14,824
     time:timestamp: 2015-01-27 19:01:23 UTC
 purchase:timestamp: 2015-01-27 00:00:00 UTC
     comment:string: embulk jruby

******************* 3 **********************
            id:long: 3
       account:long: 27,559
     time:timestamp: 2015-01-28 02:20:02 UTC
 purchase:timestamp: 2015-01-28 00:00:00 UTC
     comment:string: Embulk "csv" parser plugin

******************* 4 **********************
            id:long: 4
       account:long: 27,559
     time:timestamp: 2015-01-28 02:20:02 UTC
 purchase:timestamp: 2015-01-28 00:00:00 UTC
     comment:string: Embulk "csv" parser plugin

******************* 5 **********************
            id:long: 5
       account:long: 27,559
     time:timestamp: 2015-01-28 02:20:02 UTC
 purchase:timestamp: 2015-01-28 00:00:00 UTC
     comment:string: Embulk "csv" parser plugin