MFC:

r274792 | n_hibma | 2014-11-21 15:53:42 +0100 (Fri, 21 Nov 2014) | 5
lines

Simply remove the tmp dir before creating the symlink. We are doing
chroots all over the place, so there is bound to be a stale file lying
around in there (in my case samba lock files from creating accounts). If
we don't do that, the symlink later will fail.