git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_2@55357 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
gems. [ruby-core:74814] [Backport #12248]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_2@55357 b2dd03c8-39d4-4d8f-98ff-823fe69b080e