fix r58833
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58841 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
fix r58833
when downloaded to the cache but not the target file.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58841 b2dd03c8-39d4-4d8f-98ff-823fe69b080e