DOC: use the req.ssl_sni in examples

This patch should be backported to at least 2.0

(cherry picked from commit 5c866200d4ec61e02676596d473a2af88916d45e)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
(cherry picked from commit 18c8877b34d3e376b9f15299ff92e8d641db30f3)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
1 file changed