Ruby

merges r29517 from trunk into ruby_1_9_2.¶

• ext/win32ole/win32ole.c (ole_encoding2cp): set codepage 20936
  according to GB2312. [Bug #3937] [ruby-core:32758]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_2@30048 b2dd03c8-39d4-4d8f-98ff-823fe69b080e