Why is OpenSSL x509 DN output not conformant to RFC2253?
The ways to print out the oneline format of the DN (Distinguished Name) have been extended in version 0.9.7 of OpenSSL. Using the new X509_NAME_print_ex() interface, the “-nameopt” option could be introduded. See the manual page of the “openssl x509” commandline tool for details. The old behaviour has however been left as default for the sake of compatibility.