* lib/test/unit/autorunner.rb (Test::Unit::AutoRunner.run,
Test::Unit::AutoRunner#initialize): take test list to run.
* lib/test/unit/autorunner.rb (Test::Unit::AutoRunner::RUNNERS,
Test::Unit::AutoRunner#run): should not exit inside a library, just
return the result instead.
* lib/test/unit.rb: ditto.
* test/runner.rb: exit with the test result.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@5083 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
nobu