ログ出力構成修正。
common最新化。
Merge branch 'master' into step-00
Merge branch 'step-00' into step-01
Merge branch 'step-01' into step-02
STEP 16
Merge branch 'master' into step-00
Merge branch 'step-00' into step-01
Merge branch 'step-01' into step-02