Merge trunk revision: 39324
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@39343 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Merge trunk revision: 39324
altering @bin_dir. Fixes tests on windows. [ruby-trunk - Bug #7885]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@39343 b2dd03c8-39d4-4d8f-98ff-823fe69b080e