test.sh: add forgotten changes

Fix commit:

commit b5710549af5ddd175131cdb9d35959cf44051932
Author: Xiaoguang Wang <wangxg.fnst@cn.fujitsu.com>
Date:   Thu Sep 18 11:01:16 2014 +0800

    runtest/containers: fix errors in netns_par_chld_ftp testcase that takes TCONF as TFAIL

I've forgotten to amend the changes that exit the test execution with
tst_brkm instead of trying to continue pointlessly on failure.

Signed-off-by: Cyril Hrubis <chrubis@suse.cz>
1 file changed