* ext/openssl/ossl_ssl.c: pass read_nonblock options to underlying IO
  when SSL session has not been started.

* test/openssl/test_ssl.rb: test for change.

git-svn-id: svn+ssh://svn.ruby-lang.org/ruby/trunk@44732 b2dd03c8-39d4-4d8f-98ff-823fe69b080e