the result is used with functions whose argument is int.

* ext/openssl/ossl_ssl.c (ossl_sslctx_setup): ditto.

* ext/openssl/ossl_x509store.c (ossl_x509store_set_purpose): ditto.

* ext/openssl/ossl_x509store.c (ossl_x509store_set_trust): ditto.

* ext/openssl/ossl_x509store.c (ossl_x509stctx_set_purpose): ditto.

* ext/openssl/ossl_x509store.c (ossl_x509stctx_set_trust): ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@31165 b2dd03c8-39d4-4d8f-98ff-823fe69b080e