libcgroup: Fix cgroup_modify_cgroup
libcgroup: Fix cgroup_modify_cgroup

An almost unused and less tested API. The path was getting
misformed. This was because it had not been set in the first place.

Signed-off-by: Dhaval Giani <dhaval@linux.vnet.ibm.com>
Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com>



git-svn-id: 312abad21b46f471ee9c8bf93af65050a03353f9@146 4f4bb910-9a46-0410-90c8-c897d4f1cd53

rafalmiel/libcg,rafalmiel/libcg,rafalmiel/libcg,jrfastab/Linux-cgdcbxd,jrfastab/Linux-cgdcbxd,rafalmiel/libcg,jrfastab/Linux-cgdcbxd,jrfastab/Linux-cgdcbxd