test/unit.rb: show signal
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51411 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
test/unit.rb: show signal
terminated signal when a worker died.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51411 b2dd03c8-39d4-4d8f-98ff-823fe69b080e