Merge branch 'nd/per-worktree-ref-iteration'

Build fix. * nd/per-worktree-ref-iteration: files-backend.c: fix build error on Solaris

Junio C Hamano committed Nov 26, 2018 at 23:13 UTC a1598010f775d82b5adf12c29d0f5bc9b41434c6

No changes.