use getgrnam() for groups
use getgrnam() for groups

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




git-svn-id: 84576aac536cfb34ec8a52f99ef71abd760a774d@17 4f4bb910-9a46-0410-90c8-c897d4f1cd53

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