update message of timeover on hrpEC

[YoheiKakiuchi]

Timeoverの頻度が分かるように、デバッグメッセージにタイムスタンプをつけました。
また、時間の表示桁数を１桁増やしました。

[k-okada]

Test FAILed.
Refer to this link for build results: http:https://jenkins.jsk.imi.i.u-tokyo.ac.jp:8080job/hrpsys-qnx/1700/

Build Log
last 10 lines

[...truncated 289 lines...]
    at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:528)
    at hudson.model.Run.execute(Run.java:1745)
    at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
    at hudson.model.ResourceController.execute(ResourceController.java:89)
    at hudson.model.Executor.run(Executor.java:240)
ERROR: null
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