Add /etc/ssl/cert.pem to gnutls-trustfiles for macOS

Problem reported by Mark Ferlatte (Bug#28603).
* lisp/net/gnutls.el (gnutls-trustfiles): Add /etc/ssl/cert.pem for macOS.

1 files changed, 1 insertions, 0 deletions

diff --git a/lisp/net/gnutls.el b/lisp/net/gnutls.el
index d4943a33031..98f7b585588 100644
--- a/lisp/net/gnutls.el
+++ b/lisp/net/gnutls.el
@@ -92,6 +92,7 @@ to all of the tests described above."
     "/etc/ssl/ca-bundle.pem"                 ; Suse
     "/usr/ssl/certs/ca-bundle.crt"           ; Cygwin
     "/usr/local/share/certs/ca-root-nss.crt" ; FreeBSD
+    "/etc/ssl/cert.pem"                      ; macOS
     )
   "List of CA bundle location filenames or a function returning said list.
 The files may be in PEM or DER format, as per the GnuTLS documentation.