before ossl_raise. this cause a test failure on Linux. http://u64.rubyci.org/~chkbuild/ruby-trunk/log/20120507T190102Z.log.html.gz git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35583 b2dd03c8-39d4-4d8f-98ff-823fe69b080e