The trailing dot should be removed from the host name in the call to SSL_set1_host

[joejulian]

Although the host name should retain the dot for SNI, the hostname expectations for SAN excludes the trailing dot. Per this comment from openssl, I believe the trailing dot should be removed from the host name when passing it to SSL_set1_host:
openssl/openssl#11560 (comment)

librdkafka/src/rdkafka_ssl.c

Line 471 in c23adb9

if (!SSL_set1_host(rktrans->rktrans_ssl, name))