openssl s_time: plug SSL leak in doConnection

[Scott Cheloha]

tb@ spotted this one.

If BIO_new fails we leak scon, so SSL_free it in that case.

ok?

--
Scott Cheloha

Index: usr.bin/openssl/s_time.c
===================================================================
RCS file: /cvs/src/usr.bin/openssl/s_time.c,v
retrieving revision 1.25
diff -u -p -r1.25 s_time.c
--- usr.bin/openssl/s_time.c    11 Aug 2018 16:07:36 -0000      1.25
+++ usr.bin/openssl/s_time.c    13 Aug 2018 15:53:12 -0000
@@ -365,8 +346,10 @@ doConnection(SSL * scon)
        long verify_error;
        int i;
 
-       if ((conn = BIO_new(BIO_s_connect())) == NULL)
+       if ((conn = BIO_new(BIO_s_connect())) == NULL) {
+               SSL_free(scon);
                return (NULL);
+       }
 
 /*     BIO_set_conn_port(conn,port);*/
        BIO_set_conn_hostname(conn, s_time_config.host);