Close FDs.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46261 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2014-05-31

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46262 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
add --disable-gem

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46263 b2dd03c8-39d4-4d8f-98ff-823fe69b080e