test: IPC message queue copy feature test update

test: IPC message queue copy feature test update

This update fixes coding style problems (80-characters line and others).
Also, it fixes test to work with new IPC sysctls (instead of using
experimental API logic, which was throwed away and replaced by sysctls).

Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Cc: Serge Hallyn <serge.hallyn@canonical.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Pavel Emelyanov <xemul@parallels.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>