Why is pathname being moved to ext?

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http://redmine.ruby-lang.org/issues/show/3478
http://redmine.ruby-lang.org/issues/show/3608

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[1] Pathname のメソッドが Ruby スクリプトから C 拡張ライブラリに移動されているのは何故なのか問題 - ruby trunk changes

2010e$BG/e(B9e$B7ne(B10e$BF|e(B18:47 Yusuke ENDOH [email protected]:

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