merge revision(s) 28716:
* thread_pthread.c (get_stack): fix memory leak; pthread_attr_destory must be called even when pthread_getattr_np is used. [ruby-core:31269]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_2@28720 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 28716:
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_2@28720 b2dd03c8-39d4-4d8f-98ff-823fe69b080e