[fontconfig/f20] (3 commits) ...Revert the previous change and do not create a directory for migration when no old config file nor d

[Akira TAGOH]

Summary of changes:

  027b96b... Set XDG_CONFIG_HOME explicitly at %post to avoid creating d (*)
  70c216f... Revert the previous change and do not create a directory fo (*)
  53a8100... Revert the previous change and do not create a directory fo (*)

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