read_nonblock not present with Ruby < 1.9 OpenSSL .rb files

Author: kares

src/test/ruby/ssl/test_ssl.rb

@@ -151,6 +151,6 @@ def test_read_nonblock_would_block
 
       ssl.close
     end
-  end
+  end if RUBY_VERSION > '1.9'
 
 end