[faiproject/fai] e12aaf: add test if subdir exists

[Mrfai]

  Branch: refs/heads/master
  Home:   https://github.com/faiproject/fai
  Commit: e12aafbc8946d44fde24c6962f0aeef7df86646a
      https://github.com/faiproject/fai/commit/e12aafbc8946d44fde24c6962f0aeef7df86646a
  Author: Thomas Lange <lange at debian.org>
  Date:   2021-02-18 (Thu, 18 Feb 2021)

  Changed paths:
    M bin/fai-debconf

  Log Message:
  -----------
  add test if subdir exists


  Commit: 30ba5f3076d5786b79fff25153215cec7b93590f
      https://github.com/faiproject/fai/commit/30ba5f3076d5786b79fff25153215cec7b93590f
  Author: Thomas Lange <lange at debian.org>
  Date:   2021-02-21 (Sun, 21 Feb 2021)

  Changed paths:
    M doc/fai-guide.txt

  Log Message:
  -----------
  do not use apt-key


  Commit: c4f3f38935743dd6cc7c1410f3bbed3440817ec8
      https://github.com/faiproject/fai/commit/c4f3f38935743dd6cc7c1410f3bbed3440817ec8
  Author: Thomas Lange <lange at debian.org>
  Date:   2021-02-21 (Sun, 21 Feb 2021)

  Changed paths:
    M doc/fai-guide.txt

  Log Message:
  -----------
  remove apt-key, prefer .gpg instead of .asc


  Commit: 1d08081b224d761eadc3cfbd15470aa2e5e5a4f8
      https://github.com/faiproject/fai/commit/1d08081b224d761eadc3cfbd15470aa2e5e5a4f8
  Author: Thomas Lange <lange at debian.org>
  Date:   2021-02-26 (Fri, 26 Feb 2021)

  Changed paths:
    M bin/fai

  Log Message:
  -----------
  typo


  Commit: d5d2efa32cff106f051dacce88b9288fffd6634d
      https://github.com/faiproject/fai/commit/d5d2efa32cff106f051dacce88b9288fffd6634d
  Author: Thomas Lange <lange at debian.org>
  Date:   2021-02-28 (Sun, 28 Feb 2021)

  Changed paths:
    M bin/fai-setup

  Log Message:
  -----------
  $dev was never set, use iprange for setting $myip

Bug report https://github.com/faiproject/fai/pull/106


  Commit: 895b3b89a29d87c0a10537f2653e415ea0cb3bb8
      https://github.com/faiproject/fai/commit/895b3b89a29d87c0a10537f2653e415ea0cb3bb8
  Author: Thomas Lange <lange at debian.org>
  Date:   2021-02-28 (Sun, 28 Feb 2021)

  Changed paths:
    M bin/fai-make-nfsroot

  Log Message:
  -----------
  do not copy fai-make-nfsroot.log into nfsroot if a generic is generated


Compare: https://github.com/faiproject/fai/compare/93187df3124f...895b3b89a29d