twitch: Switch to the util library.
twitch: Switch to the util library.

Former-commit-id: 9ef7d6f6e5103498ec8cd38f3eec69401d22a5df [formerly ce17d4698b758242c11cfdada1350a15ac317d28]
Former-commit-id: bfc42ae5b8698b55e498c5608c5a3714ef051d69
haste/ivar2,torhve/ivar2,torhve/ivar2,torhve/ivar2