Commit Briefs
cope with directory entries returned from readdir(3) with type DT_UNKNOWN
Such directory entries need special handling to make our directory traversal code work on filesystems that do not support the d_type optimization. I found this problem because references stored in the refs/ directory were not shown by 'got log' and 'tog log' when a repository is mounted over NFS. helpful feedback + ok millert@
fix deletion of branches stored in packed-refs
broken since 29606af7a3a58767bf817a38035490899609d13e