Cleanup copyright years and file names in the header comments of some files.

Itagaki Takahiro <itagaki.takahiro@gmail.com>

Commit: 2d8de0a50b54cc0ed430ffa96dc8776dfe95d5ff
Author: Itagaki Takahiro <itagaki.takahiro@gmail.com>
Date: 2011-03-10T06:05:33Z
Releases: 9.1.0
Cleanup copyright years and file names in the header comments of some files.

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