BUG/MINOR: server/ssl: free the SNI sample expression

ASAN complains about the SNI expression not being free upon an haproxy
-c. Indeed the httpclient is now initialized with a sni expression and
this one is never free in the server release code.

Must be backported in 2.5 and could be backported in every stable
versions.

(cherry picked from commit 43c2ce4d81d8184007a8eb49240b81687c213dec)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
(cherry picked from commit b5a0880b304aab6735ad16551e5274c7c57a8a71)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
1 file changed