test_set_errors in test_x509store.rb fails on CentOS 5.5
On CentOS 5.5, test_set_errors in test_x509store.rb fails as follows:
OpenSSL::X509::StoreError expected but nothing was raised.
OpenSSL::X509::StoreError exception expected but none was thrown.
test_set_errors asserts that OpenSSL::X509::Store#add_crl raises an exception
when two CRLs issued by same CA are added to the store.
However, the openssl package provided by CentOS are patched not to treat this
as an error (multi-crl.patch).