After you're done making changes, check the file back in with a meaningful change log message (see Listing 6).

在完成了相应的更改之后，使用有意义的更改日志消息再次签入该文件(请参见清单6)。

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Logs the class of the log message, which is helpful if you want to change the verbosity of a certain class (This option helps you determine which class you want.)

记录日志消息的类别，如果您要更改某个类的详细程度这会有所帮助(该选项帮助确定您想要的类。)

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