argument type with NUM2LONG if the arg is not a Time object.
See #4919.
* ext/openssl/ossl_ssl_session.c (ossl_ssl_session_set_timeout): Check
type with NUM2LONG. Time as an arg is not allowed. See #4919.
* test/openssl/test_ssl_session.rb (test_session_time,
test_session_timeout): Test it.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@32211 b2dd03c8-39d4-4d8f-98ff-823fe69b080e