domain name with trailing dot fails the certificate check when using gnutls about curl

[bagder]

I think this description is slightly off. The correct SNI field (without trailing dot) is actually used. The problem is rather in this call:

curl/lib/vtls/gtls.c

Line 1202 in 5fa594a

rc = gnutls_x509_crt_check_hostname(x509_cert, peer->hostname);

... where peer->hostname points to pyropus.ca. and GnuTLS returns 0, meaning failure.

[ryandesign]

I think this description is slightly off.

Likely so; I was guessing. Feel free to retitle or edit as needed.

[icing]

Please see #13440 for the fix and added test cases.

[icing]

Fix and tests now in #13486.