[perl-Proc-Wait3/f13/master] (4 commits) ...- Upstream update (License clarified).

[corsepiu]

Summary of changes:

  21c6ee3... Import. (*)
  d04c065... Import. (*)
  723f89f... - Upstream update (License clarified). (*)
  dde5e45... - Upstream update (License clarified).

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