connect: Fix a memory leak.

CID: #1238618

Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
Reviewed-by: Aris Adamantiadis <aris@0xbadc0de.be>
(cherry picked from commit 06a0d8ff1c)

src/connect.c

@@ -285,6 +285,7 @@ socket_t ssh_connect_host(ssh_session session, const char *host,
       socket_t ret = ssh_connect_ai_timeout(session, host, port, itr,
           timeout, usec, s);
 
+      freeaddrinfo(ai);
       return ret;
     }