merge revision(s) 36259:
* KNOWNBUGS.rb: add tests. [ruby-dev:45656] [Bug #6460]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@36286 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 36259:
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@36286 b2dd03c8-39d4-4d8f-98ff-823fe69b080e