[yp-tools/f17] (2 commits) ...Do not check old passwords using passwd.adjunct feature

[Honza Horak]

Summary of changes:

  1604bf4... Patch from Paul Wouters to handle crypt() returning NULL Re (*)
  b8eaf28... Do not check old passwords using passwd.adjunct feature (*)

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