merges r22024 from trunk into ruby_1_9_1.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_1@22509 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merges r22024 from trunk into ruby_1_9_1.
modifier to handle PRIdPTRDIFF. thanks for the info from
Kazuhiro NISHIYAMA. [ruby-core:21807]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_1@22509 b2dd03c8-39d4-4d8f-98ff-823fe69b080e