Backport r33231.
thread.c (rb_thread_select): fix a typo to initialize efds properly. [Bug #5299] [ruby-core:39380]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@33258 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Backport r33231.
thread.c (rb_thread_select): fix a typo to initialize efds
properly. [Bug #5299] [ruby-core:39380]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@33258 b2dd03c8-39d4-4d8f-98ff-823fe69b080e