nobu 37beb43b55 downloader.rb: disable verify if rubygems is old
* tool/downloader.rb (Downloader::RubyGems.download): verify gems
  only if RubyGems is 2.4 or later.  old RubyGems fails to verify
  almost all of bundled gems.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55055 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-05-18 07:04:55 +00:00
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