Add missing virGetGroupName()
Add missing virGetGroupName()

Add missing function if !HAVE_GETPWUID_R.

jfehlig/libvirt,rmarwaha/libvirt1,iam-TJ/libvirt,foomango/libvirt,foomango/libvirt,danwent/libvirt-ovs,fabianfreyer/libvirt,libvirt/libvirt,wiedi/libvirt,zippy2/libvirt,libvirt/libvirt,datto/libvirt,emaste/libvirt,fabianfreyer/libvirt,rmarwaha/libvirt1,novel/fbsd-libvirt,novel/fbsd-libvirt,VenkatDatta/libvirt,warewolf/libvirt,novel/fbsd-libvirt,siboulet/libvirt-openvz,elmarco/libvirt,rmarwaha/libvirt,emaste/libvirt,warewolf/libvirt,nertpinx/libvirt,dumbbell/libvirt,jardasgit/libvirt,rmarwaha/libvirt,rlaager/libvirt,crobinso/libvirt,crobinso/libvirt,datto/libvirt,elmarco/libvirt,jeckersb/libvirt,shugaoye/libvirt,jfehlig/libvirt,rlaager/libvirt,jardasgit/libvirt,foomango/libvirt,libvirt/libvirt,jeckersb/libvirt,elmarco/libvirt,elmarco/libvirt,iam-TJ/libvirt,rlaager/libvirt,jardasgit/libvirt,andreabolognani/libvirt,dumbbell/libvirt,zippy2/libvirt,libvirt/libvirt,bjzhang/libvirt,taget/libvirt,shugaoye/libvirt,jeckersb/libvirt,shugaoye/libvirt,VenkatDatta/libvirt,taget/libvirt,wiedi/libvirt,eskultety/libvirt,cbosdo/libvirt,taget/libvirt,rmarwaha/libvirt,rmarwaha/libvirt,zhlcindy/libvirt-1.1.4-maintain,zippy2/libvirt,agx/libvirt,agx/libvirt,iam-TJ/libvirt,dumbbell/libvirt,crobinso/libvirt,andreabolognani/libvirt,datto/libvirt,fabianfreyer/libvirt,olafhering/libvirt,danwent/libvirt-ovs,siboulet/libvirt-openvz,zhlcindy/libvirt-1.1.4-maintain,siboulet/libvirt-openvz,taget/libvirt,warewolf/libvirt,bjzhang/libvirt,wiedi/libvirt,taget/libvirt,warewolf/libvirt,olafhering/libvirt,iam-TJ/libvirt,wiedi/libvirt,warewolf/libvirt,rlaager/libvirt,novel/fbsd-libvirt,VenkatDatta/libvirt,iam-TJ/libvirt,danwent/libvirt-ovs,fabianfreyer/libvirt,cbosdo/libvirt,emaste/libvirt,jeckersb/libvirt,trainstack/libvirt,dumbbell/libvirt,shugaoye/libvirt,fabianfreyer/libvirt,nertpinx/libvirt,trainstack/libvirt,cbosdo/libvirt,bjzhang/libvirt,datto/libvirt,rmarwaha/libvirt,jeckersb/libvirt,nertpinx/libvirt,siboulet/libvirt-openvz,jeckersb/libvirt,wiedi/libvirt,eskultety/libvirt,eskultety/libvirt,iam-TJ/libvirt,eskultety/libvirt,zhlcindy/libvirt-1.1.4-maintain,VenkatDatta/libvirt,andreabolognani/libvirt,rlaager/libvirt,emaste/libvirt,trainstack/libvirt,rmarwaha/libvirt1,jfehlig/libvirt,novel/fbsd-libvirt,novel/fbsd-libvirt,olafhering/libvirt,nertpinx/libvirt,rmarwaha/libvirt1,bjzhang/libvirt,danwent/libvirt-ovs,novel/fbsd-libvirt,agx/libvirt,emaste/libvirt,jfehlig/libvirt,crobinso/libvirt,wiedi/libvirt,wiedi/libvirt,rmarwaha/libvirt1,dumbbell/libvirt,rmarwaha/libvirt1,zippy2/libvirt,iam-TJ/libvirt,andreabolognani/libvirt,agx/libvirt,trainstack/libvirt,danwent/libvirt-ovs,datto/libvirt,siboulet/libvirt-openvz,eskultety/libvirt,cbosdo/libvirt,jardasgit/libvirt,zhlcindy/libvirt-1.1.4-maintain,bjzhang/libvirt,nertpinx/libvirt,warewolf/libvirt,jeckersb/libvirt,zhlcindy/libvirt-1.1.4-maintain,dumbbell/libvirt,agx/libvirt,foomango/libvirt,rmarwaha/libvirt,novel/fbsd-libvirt,trainstack/libvirt,emaste/libvirt,jardasgit/libvirt,emaste/libvirt,shugaoye/libvirt,VenkatDatta/libvirt,warewolf/libvirt,novel/fbsd-libvirt,olafhering/libvirt,trainstack/libvirt,foomango/libvirt,trainstack/libvirt,andreabolognani/libvirt,cbosdo/libvirt,elmarco/libvirt