This signals that CGI.pm and its companions will no longer be shipped with the core perl distribution. Warnings will be issued from v5.19.x (once this commit is in bleadperl) through the full v5.20 series. CGI will then be removed from core perl in v5.21.0.
…ib' path for the tests. Instead, Test::More is now a dependency. Thanks to Ansgar and Mark Stosberg (RT#48811)