naustver: use util
naustver: use util

Former-commit-id: 4525a1c799316143acf22b6efea576d38ed6d3d3 [formerly 2ec92c6478e2972fb84a0f0e09fd77fc57abf5b5]
Former-commit-id: 406bf1a9415e77fbc92b7a7a20db3cb335ea8420
torhve/ivar2,haste/ivar2,torhve/ivar2,torhve/ivar2