[Bug #1464] backport request to ruby_1_9_1


#1

Bug #1464: backport request to ruby_1_9_1
http://redmine.ruby-lang.org/issues/show/1464

e$B5/I<<Te(B: Usaku NAKAMURA
e$B%9%F!<%?%9e(B: Open, e$BM%@hEYe(B: Normal
e$BC4Ev<Te(B: Yuki S., Target version: 1.9.1
ruby -v: ruby 1.9.1p0 (2009-05-12 revision 23405) [i386-mswin32]

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