[pam/f19] (2 commits) ...pam_unix: do not fail with bad ld.so.preload

[Tomáš Mráz]

Summary of changes:

  bc16a79... pam_unix: do not fail with bad ld.so.preload (*)
  01ca858... pam_unix: do not fail with bad ld.so.preload (*)

(*) This commit already existed in another branch; no separate mail sent