test_require.rb: no guarantees to load FIFO
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52173 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
test_require.rb: no guarantees to load FIFO
not guaranteed, it just should not block the whole process.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52173 b2dd03c8-39d4-4d8f-98ff-823fe69b080e