On some platforms, setting stdout to binary mode isn't quite enough, which makes the result unusable. With -out, we have better control. Reviewed-by: Rich Salz <rsalz@openssl.org> (Merged from https://github.com/openssl/openssl/pull/2939)
Reviewed-by: Matt Caswell <matt@openssl.org> Reviewed-by: Andy Polyakov <appro@openssl.org> (Merged from https://github.com/openssl/openssl/pull/2801)