If X509_load_cert_crl_file(3) does not find any certificates

and/or CRLs in the PEM input file (for example, if the file
is empty), provide an error message in addition to returning 0.

This merges another part of this OpenSSL commit,
which is still under a free license:

  commit c0452248ea1a59a41023a4765ef7d9825e80a62b
  Author: Rich Salz <rsalz@openssl.org>
  Date:   Thu Apr 20 15:33:42 2017 -0400

I did *not* add the similar message types X509_R_NO_CERTIFICATE_FOUND
and X509_R_NO_CRL_FOUND because both code inspection and testing
have shown that the code generating them is unreachable.

OK tb@

0 files changed, 0 insertions, 0 deletions