make-snapshot: download by after-update
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48067 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
make-snapshot: download by after-update
gems, and Unicode data by after-update.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48067 b2dd03c8-39d4-4d8f-98ff-823fe69b080e