contrib/kyua: Merge vendor import

* commit '5f174897f67783925f4ec69122673f9bad6ee6fe':
vendor/kyua: Update to snapshot 84c8ec8
Vendor import of freebsd/kyua@a0d44bb356e0c816
Approved by: mark

contrib/kyua: Merge vendor import

* commit '5f174897f67783925f4ec69122673f9bad6ee6fe':
vendor/kyua: Update to snapshot 84c8ec8
Vendor import of freebsd/kyua@a0d44bb356e0c816
Approved by: markj
Differential Revision: https://reviews.freebsd.org/D43475

show more ...