downloader.rb: utilize dir argument
dir
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58831 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
downloader.rb: utilize dir argument
dir
argument of Downloader.download.git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58831 b2dd03c8-39d4-4d8f-98ff-823fe69b080e