- option --keep-going is not mandatory if we run a single testcase
- show warning when we use --keep-going with a custom set of testcases
- ignore --keep-going when we run a custom set of testcase (exit on 1st fail)
Signed-off-by: Sergey Bronnikov <sergeyb@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>