merge revision(s) r46598: [Backport #9991]
* lib/webrick/utils.rb (create_listeners): Close socket objects.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@46605 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) r46598: [Backport #9991]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@46605 b2dd03c8-39d4-4d8f-98ff-823fe69b080e