cgroups: fix memory allocation for process list
cgroups: fix memory allocation for process list

Signed-off-by: Andrey Vagin <74c05afa918858348d6db8037d82fa8124870113@openvz.org>

hallyn/libct,avagin/libct,xemul/libct,avagin/libct,xemul/libct,xemul/libct,avagin/libct,xemul/libct,hallyn/libct,hallyn/libct