* ext/openssl/ossl_ssl.c (Init_ossl_ssl): Declare a constant
`OP_MSIE_SSLV2_RSA_PADDING` only if the macro is defined. The
`SSL_OP_MSIE_SSLV2_RSA_PADDING` has been removed from latest
snapshot of OpenSSL 1.0.1. [Fixes GH-488]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44402 b2dd03c8-39d4-4d8f-98ff-823fe69b080e