test_ftp.rb: loosen timeout for Travis osx
https://travis-ci.org/ruby/ruby/jobs/454798071
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65723 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
test_ftp.rb: loosen timeout for Travis osx
https://travis-ci.org/ruby/ruby/jobs/454798071
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65723 b2dd03c8-39d4-4d8f-98ff-823fe69b080e