upgrade the default WINNT version
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64294 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
upgrade the default WINNT version
as well as mswin version since r50051. Windows XP has ended years
ago.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64294 b2dd03c8-39d4-4d8f-98ff-823fe69b080e