/usr/lib/tmpfiles.d/passwd.conf is in passwd 1:4.5-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 | # If a password operation is in progress and we lose power, stale lockfiles
# can be left behind. Clear them on boot.
r! /etc/gshadow.lock
r! /etc/shadow.lock
r! /etc/passwd.lock
r! /etc/group.lock
r! /etc/subuid.lock
r! /etc/subgid.lock
|