Suppress warnings.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46297 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2014-06-02

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46298 b2dd03c8-39d4-4d8f-98ff-823fe69b080e