util: Update the inconsistent and outdated comments
util: Update the inconsistent and outdated comments

The codes were updated to allow to reset the device as long as
there is no devices/functions behind the same bus. However, the
comments were kept without touched.

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