GitLab

* lisp/net/nsm.el (nsm-check-tls-connection): Fix issue with plural
  problems in message.  Prefix every problem with a bullet.
  (nsm-query-user): Add new view the full certificate chain by
  pressing d.
  (nsm-format-certificate): Improve basic certificate and session info
  formatting.

* src/gnutls.c (emacs_gnutls_certificate_export_pem): New function.
  (gnutls_certificate_details): Rename to
  emacs_gnutls_certificate_details.  Add :pem to result list.
  (Fgnutls_format_certificate):  New function for formatting a PEM to
  human-readable text.